13-Letter Words Starting with I

A flowering; the putting forth and unfolding of blossoms.

INFLUENCE A flowing in or upon; influx.

In an influential manner.

Informality

Informative

Infotainment

Occurring within a species.

Infrequency

Infringement

Infusibility.

Cleverness, originality

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

Ingrownness

Inhabitancy

Inheritress

Pl. inhomogeneities Lack of homogeneity.

Not homogeneous or uniform inhomogeneity   [ɪnˌhəʊmədʒɪˈniːɪtɪ -ˌhɒm-] n

Inhumanness

Initialness

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

Innocuous

Inobservance

Inoffensive

Inoperculate

Not opportunely; unseasonably; inconveniently.

In an inquisitive manner.

Insalubrity

The state of being insatiate.

Inscriptive

Having a diet of ants etc

Like, eg, anteaters

Eating bugs

Insemination

""The state or quality of being insensible; want of sensibility; torpor; unconsciousness; as, the insensibility produced by a fall, or by opiates. as, the insensibility produced by a fall, or by opiates.""

Insensitive

""INSENSITIVE Not sensitive; wanting sensation, or wanting acute sensibility.""

Gradual change with harmful effect

Insincerity

INSOLUBILIZE

Insolubilize

The quality or state of being insoluble; insolubility

Inspectorate

The office of an inspector.

Instability

Quality of being instantaneous.

Done in a moment

Occurring with no delay

On-the-spot

Instantness

Naturally.

Instructive

Instrumental

Instrument

Disobedient in playing outside barn

Refusing to obey authority

Resistant antibodies run amok

(A) lack

Cool three drinks clutching bottle opener? It's dreadful!

Insurrection

Invulnerable

""INSUSCEPTIBLE Not susceptible; not capable of being moved, affected, or impressed; that can not feel, receive, or admit; as, a limb insusceptible of pain; a heart insusceptible of pity; a mind insusceptible to flattery. as, a limb insusceptible of pain; a heart insusceptible of pity; a mind insusceptible to flattery.""

The quality of being integrable.

Integrality

""Belonging to, or composed of, integuments.""

INTELLECTION A mental act or process; especially: (a) The act of understanding; simple apprehension of ideas; intuition. Bentley. (b) A creation of the mind itself. (a) The act of understanding; simple apprehension of ideas; intuition. Bentley. (b) A creation of the mind itself.

Brains in order, working at clues

Persons of special enlightenment.

Smart set*

""One who, or that which, sends or conveys intelligence or news; a messenger.""

Intelligence

In a sensible, thoughtful manner

In a sensible manner

Perceptively

Intemperance

In an intemperate manner; immoderately; excessively; without restraint.

Inteneration

Intenseness

Intensional

The quality or state of being intensive; intensity.

That's meant and no mistake

INTERACTION Intermediate action.

Interactive

BEHAVIOR conduct

Plural noun or verb form

Mixing blood lines

Mixing across races

""INTERCALATE To insert, as a day or other portion of time, in a calendar.""

""The insertion of a day, or other portion of time, in a calendar.""

Like electrical signals in the body Toyota (nonverbal)

""INTERCEPTION The act of intercepting; as, interception of a letter; interception of the enemy. as, interception of a letter; interception of the enemy.""

Intercession

Interchain

Interchanger

CHANGING change

Among certain regions.

COMMUNAL belonging to the community

COMPARED compare

Intercompare

Interconnect

Interconvert

CORTICAL pertaining to a {cortex=n}

CROPPING crop

Intercross

CULTURAL relating to culture

Plural or third person singular

Interdental

Interdepend

DICTIONS diction

DIFFUSED diffuse

Interdiffuse

Interlock like fingers of clasped hands

DISTRICT to divide into localities

DOMINION supreme authority

ELECTRON an elementary particle

EPIDEMIC a widespread outbreak of a disease

In an interesting manner.

FAMILIAL pertaining to a {family=n}

Interference

English word

Like the Enterprise in "Star Trek"

Relating to empty space

Relating to deep space

Interglacial

Intergraft

GRANULAR composed of granules

INDUSTRY a group of productive enterprises

INVOLVED involve

Interinvolve

INTERIORISE to incorporate within oneself; same as interiorize.interiorize.

Interiority

INTERIORIZE to incorporate within oneself.

""INTERJECTION The act of interjecting or throwing between; also, that which is interjected.""

""The act of interlacing, or the state of being interlaced; also, that which is interlaced.""

Interlayer

Interlinear

Interlocutor

""Consisting of, or having the nature of, dialogue; conversational.""

MARGINAL anything in or on a margin

Wedding between different groups

Union of persons from different groups

Wedlock between persons from different social groups

Intermarry

Intermeddler

The act of improperly interfering.

MEDIATED mediate

Acts as a peacemaker

Timed trainees changing racing tyres

Trainees timed changing tyres

""MEMBRANE a thin, pliable layer of tissue""

METALLIC a fabric or yarn coated with metal

MINGLING the act of {mixing=v}

Breaks between acts

Act or state of intermitting; intermission.

City interment (anagram)

Intermixture

MOUNTAIN a high hill

INTERNALISE Same as internalize.

Internality

INTERNALIZE to incorporate within oneself.

Cover race between countries

Rallying song since 1871.

Game played between countries

NEURONAL pertaining to a {neuron=n}

OBSERVER one that {observes=v}

A specialized sensory nerve receptor that receives and responds to stimuli originating from within the body.

Interoceptor

OPERABLE {usable=adj}

PANDEMIC a widespread disease

PARTICLE a very small piece or part

""INTERPELLATE To question imperatively, as a minister, or other executive officer, in explanation of his conduct; generally on the part of a legislative body.""

Interpellate

""INTERPELLATE To question imperatively, as a minister, or other executive officer, in explanation of his conduct; generally on the part of a legislative body.""

PERMEATE to spread through

Relating to relationships

Relating to relationships between people

Interplant

PLEADERS pleader

Interplead

INTERPOLATE To renew; to carry on with intermission.

Police worldwide at one about spurious entry

Interjection

INTERPOLATE To renew; to carry on with intermission.

Alert to prison riot - there's people breaking in!

""The act of interposing, or the state of being interposed; a being, placing, or coming between; mediation.""

Admitting of interpretation; capable of being interpreted or explained.

PROXIMAL located near the point of origin

Interracial

REGIONAL something that serves as a region

RELATING relate

Connection to one another

Interrogatee

""INTERROGATE To question formally; to question; to examine by asking questions; as, to interrogate a witness. as, to interrogate a witness.""

Can Spring be far behind (wordplay)

The third degree

"Can Spring be far behind?"

Mash or vinaigrette? Say when

Worried, I got nervier at questioning

In the form of a question

Interrogator

Conservative after turning angrier to questioning

Computer Science A signal to a computer that stops the execution of a running program so that another action can be performed.

They may be pardoned

Temporary cessations

Places where roads cross

Plural noun (-ments)

Intersession

Intersexual

SOCIETAL pertaining to a {society=n}

SPECIFIC a remedy intended for a particular disease

SPERSING sperse

Scattering between other things

Entire prison's broken out, scattering

Interstadial

STIMULUS an agency that produces a response

To put or insert between other strata.

TERMINAL an end

Intertillage

Practitioner travelling by lake between two hot lines

Intertwist

INTERVENTION The act of intervening; interposition.

WORKINGS working

Intoxicated

""Within a cell; as, the intracellular movements seen in the pigment cells, the salivary cells, and in the protoplasm of some vegetable cells. as, the intracellular movements seen in the pigment cells, the salivary cells, and in the protoplasm of some vegetable cells.""

Occurring or situated within the cerebrum: an intracerebral hemorrhage.

Intradermal

""Refusing to moderate a position, especially an extreme position; uncompromising.""

Refusal to budge

Pigheadedness a sign in recent changes

Stubborn refusal to compromise