intaglio, n. diaglyph. Antonym: cameo.
intelligence, n. knowledge, discernment, insight, acumen.
intelligent, a. clever, discerning, astute, bright, knowing, apt, sensible.
intemperance, n. excess, immoderation, debauchery.
intemperate, a. immoderate, excessive, unrestrained.
intend, v. design, purpose, propose, contemplate, plan.
intended, n. fiancé (male), fiancée (female).
intense, a. extreme, excruciating.
intensify, v. aggravate, exacerbate, heighten.
intention, n. design, plan, purpose, aim.
intentional, a. deliberate, premeditated. Antonyms: unintentional, inadvertent, accidental.
intercede, v. mediate, interpose, propitiate.
intercession, n. mediation, interposition, propitiation.
intercessor, n. mediator, interceder, propitiator, make-peace.
interchange, n. reciprocation, reciprocity, permutation; alternation.
interest, n. concern; share, portion, part, participation; advantage, benefit, weal, behoof; usury. Antonyms: boredom, ennui, indifference, unconcern.
interested, a. concerned; prejudiced, partial. Antonyms: disinterested, unconcerned, bored.
interfere, v. clash, conflict; intermeddle, interpose, intervene.
interference, n. clashing, collision; intermeddling, interposition, intervention.
interlining, n. interlineation.
interloper, n. intruder, interferer.
intermediate, a. intervening, interjacent; interlocutory (Law).
intermittent, a. remittent, periodical, recurrent.
internal, a. inward, interior, inside, inner; esoteric; intrinsic; inherent.
interpret, v. construe, translate, render.
interpretation, n. rendering, rendition, translation; exegesis, exegetics, hermeneutics, isagogics, anagogics, dittology.
interrogation point. eroteme.
interval, n. interstice (space between); interim, meantime
intervening, a. intermediate, interjacent.
intervention, n. interference, interposition; mediation, intercession.
intestines, n. pl. entrails, bowels, inwards, guts; omentum, caul, vermiform appendix, colon, rectum, hindgut, enteron, cæcum, ileum, ileus, volvulus, jejunum, duodenum, alimentary canal; chitterlings. Associated words: enterology, splanchnology, enterography, splanchnography, enteropathy, enteroplasty, enterotomy, enteralgia, enterolith, enteritis, intestinal, enteric, crypt, peristalsis, vermiculation, alvine, viscerate, visceration, eviscerate, evisceration, disembowel, disembowelment.
intolerable, a. insufferable, unendurable.
intolerance, n. bigotry, dogmatism, illiberality.
intolerant, a. bigoted, unforbearing, illiberal.
intrenchment, n. earthwork, fortification; encroachment, infringement, invasion, inroad.
intricacy, n. complication, entanglement, complexity.
intricate, a. complicated, entangled, involved, labyrinthian, mazy.
intrigue, n. conspiracy, machination, cabal, plot; amour (illicit love affair), liaison.
intrigue, v. plot, scheme, machinate, cabal.
intriguer, n. machinator, plotter, schemer, Figaro, intrigant, intrigante (female).
intriguing, a. scheming, Machiavelian, wily.
intrinsic, a. inherent, innate, real, genuine. Antonym: extrinsic.
introduction, n. preface, proem, exordium, prelude, prolegomenon, prologue, foreword; presentation; interpolation interposition, initiation.
introductory, a. preliminary, proemial, prefatory.
intrude, v. infringe, invade, encroach, obtrude, interlope.
intrusion, n. encroachment, obtrusion, infringement, interloping.
intrusive, a. obtrusive. Antonyms: unintrusive, unobtrusive, retiring.
intrust, v. commit, confide.
invade, v. infringe, encroach, trespass, intrench, trench.
invalid, a. null, void, of no efficacy; baseless, unfounded.
invalid, a. valetudinary.
invalid, n. valetudinarian.
invalidate, v. annul, abrogate, cancel, quash, nullify.
invalidation, n. nullification, abrogation, annulment.
invalidism, n. valetudinarianism.
invasion, n. irruption, foray, raid, aggression; violation, infringement, encroachment, intrenchment.
inveiglement, n. wheedling, seduction.
investigate, v. probe, sift, examine.
investigation, n. examination, inquiry, research.
invidious, a. objectionable, offensive.
invincible, a. indomitable, unconquerable.
invisible, a. imperceptible, microscopic, evanescent.
invitation, n. bidding, call, summons.
invite, v. bid, ask, summon; allure, induce, entice.
invocation, n. prayer, supplication.
involuntary, a. uncontrollable, instinctive, automatic, compulsory, forced.
inwards, n. pl. entrails, intestines, bowels, guts; viscera; giblets, inmeats, umbles.
iota, n. scintilla, tittle, atom, mite, jot, whit, bit, particle.
Ireland, n. Erin, Emerald Isle.
iridescent, a. prismatic, nacreous.
iris, n. flower-de-luce, fleur-de-lis, flag.
Irish, a. Hibernian.
Irishman, n. Hibernian, Milesian, Teague, Pat, Paddy.
irons, n. pl. fetters, chains, handcuffs, shackles, manacles, hampers, gyves.
ironworker's pneumonia. siderosis.
irrecoverable, a. irretrievable.
irregular, a. inconformable, abnormal, anomalous, exceptional, unsymmetrical, unusual, erose, baroque, aberrant.
irregularity, n. inconformableness, abnormality, asymmetry, anomaly, aberration, intermittency.
irreligious, a. ungodly, impious, godless, sacrilegious, blasphemous, profane.
irresolute, a. wavering, vacillating, inconstant, fickle, double-minded.
irresolution, n. indecision, vacillation, inconstancy, fickleness.
irresponsible, a. unaccountable, unanswerable, unreliable.
irritable, a. irascible, fretful, spleeny, choleric, petulant, fiery, captious, splenetic.
irritate, v. intensify, stimulate; provoke, vex, annoy, offend, chafe.
isinglass, n. fishglue, ichthyocol, ichthyocolla; mica; carlock.
island, n. isle, eyot, holm, islet; atoll. Associated words: insular, insularity, archipelago, lagoon, coral, maroon, marooner.
isolate, v. insulate, segregate, dissociate, detach, separate.
isolated, a. insulated, separate, solitary, segregated, sporadic.
isolation, n. insulation, segregation; loneliness, solitude.
issue, v. gush, disembogue; sally forth, debouch; proceed, emanate, ensue, follow, result.
Italian laborers. Associated word: padrone.
Italian paste. macaroni, vermicelli.
itch, n. psora, scabies; prurigo; sycosis (barber's itch); eczema; pruriency.
itching, a. tingling, prurient.
ivory, n. Associated words: eburnean, eburnine, eburin, eburnification, eburnation.
ivy, n. Associated words: hederaceous, hederal, hederic, hederiferous, hederose.