English Words: I

17,902 words · Page 9 of 359

impassableadj

Incapable of being passed over, crossed, or negotiated.

impassenoun

A road with no exit; a cul-de-sac.

impassionedadj

Filled with intense emotion or passion; fervent.

impassiveadj

Having, or revealing, no emotion.

impatiencenoun

The quality of being impatient; lacking patience; restlessness and intolerance of delays; anxiety and eagerness, especially to begin something.

impatientadj

Restless, short of temper, and intolerant of delays.

impatientlyadv

In an impatient manner.

impeachverb

To hinder, impede, or prevent.

impeachableadj

Able to be impeached (of a person).

impeachmentnoun

The act of calling into question or challenging the accuracy or propriety of something.

impeccableadj

Perfect, without faults, flaws or errors

impeccablyadv

In a perfect or flawless manner.

impedancenoun

The act of impeding; that which impedes; a hindrance.

impedeverb

To get in the way of; to hinder.

impedimentnoun

A hindrance; that which impedes or obstructs progress; impedance.

impelverb

To urge a person; to press on; to incite to action or motion via intrinsic motivation.

impelledverb

simple past and past participle of impel

impellernoun

Something which or someone who impels.

impelsverb

third-person singular simple present indicative of impel

impendingadj

Approaching; drawing near; about to happen or expected to happen.

impenetrableadj

Not penetrable.

imperativeadj

Essential; crucial; extremely important.

imperatornoun

An emperor.

imperceptibleadj

Not perceptible, not detectable, too small in magnitude to be observed.

imperceptiblyadv

Not noticeably; such that it cannot be detected, through being too small or too fast, etc.

imperfectadj

Not perfect,

imperfectionnoun

Those qualities or features that are imperfect; the characteristic, state, or quality of being imperfect.

imperfectlyadv

In an imperfect manner or degree; not fully or completely.

imperialadj

Related to an empire, emperor, or empress.

imperialismnoun

The policy of forcefully extending a nation's authority by territorial gain or by the establishment of economic and political dominance over other nations.

imperialistadj

Of, or relating to imperialism.

imperialisticadj

Of or pertaining to imperialism or imperialists; favoring imperialism.

imperilverb

To put into peril; to place in danger.

imperiledadj

at risk of becoming extinct

imperiousadj

Domineering, arrogant, or overbearing.

imperishableadj

Not perishable; not subject to decay; enduring permanently.

imperiumnoun

Supreme power; dominion.

impermanencenoun

Lack of permanence or continued duration.

impermanentadj

not permanent; unperpetual.

impermeableadj

Impossible to permeate.

impermissibleadj

Not permissible; not to be permitted or allowed.

impersonaladj

Not personal; not representing a person; not having personality.

impersonateverb

To pretend to be (a different person); to assume the identity of, especially when there is an intent to deceive.

impersonatingverb

present participle and gerund of impersonate

impersonationnoun

the act of impersonating

impersonatornoun

One who fraudulently impersonates another person.

impertinencenoun

Lack of pertinence; irrelevance.

impertinentadj

Insolent, ill-mannered or disrespectful; Disregardful.

imperviousadj

Unaffected or unable to be affected by something.

impetuousadj

Making arbitrary decisions, especially in an impulsive and forceful manner.

Spelling & Dictionary Insight

The English alphabetical index for the letter I contains 17,902 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 359 pages, and you are currently viewing page 9. Every row above is a dictionary-backed entry with a canonical slug, and each links through to a full definition page with pronunciation, senses, etymology, and related-word data where available.

On this page 50 of 50 entries carry a part-of-speech tag and 50 carry at least one stored definition. Coverage varies across letters because Wiktionary volunteers build entries at different speeds for different parts of the alphabet, letters with common starting sounds (S, C, T, P) usually have the densest coverage, while less frequent starters (X, Q, Z) tend to have shorter but more specialised lists. PlainSpell surfaces whatever data is present and links back to the source when a definition is not yet recorded.

For readers using this index as a spelling reference, the guarantee is that every form you see on the list is a documented English headword, not a guess, not a derived inflection lacking a lemma row. If a word you expected to find is absent from the "I" list, it usually means the form exists only as an inflection of another lemma (e.g. a past participle stored under the infinitive) or the entry has not yet been imported from Wiktionary. Use the search bar or the misspelling lookup to resolve these cases.