15-Letter Words Starting with I

Ichthyosaurian

IDENTICALNESS The quality or state of being identical; sameness.

Airport agents see a lot of them

Security requests

*Customs requests Able to receive a soccer pass legally (nonverbal)

Ideographical

IDIOMATICNESS idiomatic

Ignominious

Illegalization

ILLIBERALNESS The state of being illiberal; illiberality.

Illimitable

ILLOGICALNESS illogical

Note.

Imaginariness

Child's forte

What prosaic minds lack

Creative thought.

IMITATIVENESS imitative

Immateriality

IMMATERIALIZE To render immaterial or incorporeal.

""IMMEDIATENESS The quality or relations of being immediate in manner, place, or time; exemption from second or interventing causes.""

Immiscibility

Immobilization

""The act of immortalizing, or state of being immortalized.""

IMMOVABLENESS Quality of being immovable.

IMMUNOASSAY

Immunoblotting

IMMUNOCHEMIST

Having the normal bodily capacity to develop an immune response following exposure to an antigen.

""Pl. immunodeficiencies An innate, acquired, or induced inability to develop a normal immune response.""

Pl. immunodiagnoses (-s z) Diagnosis of disease based on antigen-antibody reactions in the blood serum. Also called serodiagnosis .

Pl. immunodiagnoses (-s z) Diagnosis of disease based on antigen-antibody reactions in the blood serum. Also called serodiagnosis .

Noun (-sion)

Immunoglobulin

Immunological

Agent noun (-or)

Study or science of

Immunotherapy

IMMUTABLENESS immutable

Impalpability

Impassability

Impassibility

IMPASSIVENESS impassive

Impeccability

Impecuniosity

Income issue spun out causing insolvency

Inscrutable nature of Humpty Dumpty's vocabulary

IMPERFECTNESS The state of being imperfect.

IMPERIOUSNESS imperious

The quality of being imperishable: indstructibility.

Impersonality

IMPERSONALIZE

IMPETUOUSNESS impetuous

Implacability

Executions made to sit on impalement

Tool is not a transformer of performances

Executions

Implicative

I am to meditate using skill despite suffering weightlessness!

Importunate

Impossibility

Impoverishment

IMPRECISENESS imprecise

Impregnable

Like a traveler's journal, often

Describing a school of painting.

A la Renoir

Unlikelihoods

Improvability

Like "Whose Line Is It Anyway?"

Like comedy that's performed without a script

I am tentative about a theatrical opening that's unrehearsed

IMPROVISATORI

IMPULSIVENESS The quality of being impulsive.

The quality or state of being inaccessible; inaccessibleness.

State of being not allowable

Cause for suppression of evidence

Inalterable

INANIMATENESS The quality or state of being inanimate.

The quality of being inapplicable; unfitness; inapplicableness.

In an unsuitable way

How a dress code violator is attired

Lack of concentration

Symptom of spring fever.

The quality or state of being incalculable.

INCAPABLENESS The quality or state of being incapable; incapability.

Incapacitation

INCLUSIVENESS inclusive

Utterly.

""INCOMMENSURABLE Not commensurable; having no common measure or standard of comparison; as, quantities are incommensurable when no third quantity can be found that is an aliquot part of both; the side and diagonal of a square are incommensurable with each other; the diameter and circumference of a circle are incommensurable. as, quantities are incommensurable when no third quantity can be found that is an aliquot part of both; the side and diagonal of a square are incommensurable with each other; the diameter and circumference of a circle are incommensurable.""

""Not communicative; not free or apt to impart to others in conversation; reserved; silent; as, the messenger was incommunicative; hence, not disposed to hold fellowship or intercourse with others; exclusive. as, the messenger was incommunicative; hence, not disposed to hold fellowship or intercourse with others; exclusive.""

Being such that comparison is impossible; incommensurable.

A failure to get on together

Mismatch preventing coming together

Antagonistic state of things

Lack of understanding

Lack of understanding.

Ignorance

Absurdity of cunning ruse, so, so misguided

Not worth mentioning

Of little moment.

Lacking worth or importance

Without concern, angrily imprisoning knight with Spanish page

On account (of)

As a reward for, with "of"

Getting looked at

Clashes being nasty, niceness is tonic

Holes

Inconspicuous

Inconveniency

""INCONVENIENCE The quality or condition of being inconvenient; want of convenience; unfitness; unsuitableness; inexpediency; awkwardness; as, the inconvenience of the arrangement. as, the inconvenience of the arrangement.""

Incoordination

INCORRECTNESS The quality of being incorrect; want of conformity to truth or to a standard; inaccuracy; inexactness; as incorrectness may in defect or in redundance. incorrectness may in defect or in redundance.

The state or quality of being incorrigible.

INCORRUPTNESS Freedom or exemption from decay or corruption.

Incredibility

Incrementalism

Incrementalist

INCURIOUSNESS Unconcernedness; incuriosity.

The quality of being undefeasible.

The quality of being indefectible.

Vulnerableness

Indefinable

Restitution

Indeterminacy

Vaguely dine out, finish and leave your tips

A wavering state of mind

Tired men ruined one country, being unable to make decisions

Fuzziness

INDETERMINIST

Indifferentism

Indifferentist

Indigenization

The state or quality of being indigestible; indigestibleness.

One little drink secures record likely to include name for being out of control

The quality or state of being indissoluble.

INDIVIDUALISE individual

Markedly self-reliant

Laissez-faire

Individuality

""INDIVIDUALIZE The mark as an individual, or to distinguish from others by peculiar properties; to invest with individuality.""

Indoctrination

The resolution of endless ambition (wordplay)

The state or quality of being indubitable.

INDUSTRIALISE industrial

Setting up production factories, e.g

Setting up production factories, for example

Group on American cape beyond river showing diligence

Ineducability

INEFFABLENESS The quality or state of being ineffable or unutterable; unspeakableness.

Impossible to efface; indelible.

Quality of being ineffective.

Useless condition

Without efficacy or effect.

Ineligibility

Incapable of being eradicated.

They're bound to happen

The quality of being inexcusable; enormity forgiveness.

Inexorability

It's fashionable to no longer think on the point of quality - that's cheap!

Unaccountableness

A. So intricate or entangled as to make escape impossible: an inextricable maze; an inextricable web of deceit.

Infallibility

""INFANTILIZE INFANTILE Of or pertaining to infancy, or to an infant; similar to, or characteristic of, an infant; childish; as, infantile behavior. as, infantile behavior.""

Infeasibility

By infinitesimals; in infinitely small quantities; in an infinitesimal degree.

The quality or state of being inflammable; inflammability.

Inflexibility

Informational

Informative

Infrastructure

Funnel-shaped

INFUSIBLENESS Infusibility.

INGENIOUSNESS The quality or state of being ingenious; ingenuity.

INGENUOUSNESS The state or quality of being ingenuous; openness of heart; frankness.

Inheritable

Inhomogeneity

Inhospitality

Start-up processes

Bootstrap routines

The quality of being injudicious; want of sound judgment; indiscretion.

INJURIOUSNESS The quality of being injurious or hurtful; harmfulness; injury.

INNOCUOUSNESS innocuous

Inoffensive

Inoperative

Inopportune

A nose for news.

Quidnunc's trait

Curiosity

In an inquisitorial manner.

Insatiability

INSATIATENESS The state of being insatiate.

The quality or state of being inscrutable; inscrutability.

Insensibility

Insensitive

Insensitivity

The quality or state of being inseparable; inseparability.

INSIDIOUSNESS insidious

Insignificance

In a meaningless way

Insociability

INSOLUBLENESS The quality or state of being insoluble; insolubility

Inspirational

Instantaneity

Without delay

At once.

Singles

Institutional

Forte of Mr. Chips

Instructorship

""The view that the sanction of truth is its utility, or that truth is genuine only in so far as it is a valuable instrument.""

Piper, for one

Nathan Milstein or William Kapell.

Tuba player, for example

Means

One of Nelson Riddle's fortes

Forces required for a piece of music

Scorer's concern

Insubordinate

Possible cause for dismissal

Army no-no

Display of disobedience

*Deficits

Your inner racist turned out revolting

Rebel

Rebel creating revolutionary stir in countries

Intangibility

Integrability

Integrationist

Little calumnies can create reasonable doctrine

One who overrates the importance of the understanding.

Egghead's thing

Genius's power

Give reasonable form to

Use reasoning rather than emotions

Intelligentsia

Ability to be understood

Lack of moderation

Dissolution

Peter's nine mates stupidly getting drunk (wordplay)

Process of making more extreme

Process of concentration

Getting more extreme, if CIA's muddled in aim

INTENSIVENESS The quality or state of being intensive; intensity.