TOEFL Vocabulary Page 13

301. IMPOSTOR (noun: IMPOSTURE): One who pretends to be what he is notunmasked as an impostor.

Synonyms: quack, mountebank, charlatan, bogus, fraud

302. IMPRECATION: A curse - hurled imprecations at those who would not listen to him.

Synonyms: execration, malediction, anathema

Antonyms: benediction, benison

303. IMPREGNABLE: Unconquerable - an impregnable fortress.

Synonym: invincible

Antonym: vulnerable

304. IMPROPRIETY: Improper act, manners, or expression - guilty of impropriety in public office.

Synonyms: indecency, indecorum

Antonym: amenity

305. IMPROVIDENT: Lacking in thrift; not providing for future needs - an improvident spender.

Synonyms: prodigal, shiftless

306. IMPUGN: To attack or criticize as false; to call in question - impugned his honesty.

307. INCARCERATE: To imprison - crushed his opponents by incarcerating them.

Synonyms: intern, immure

Antonyms: emancipate, enfranchise

308. INCISIVE: Cutting, penetrating - incisive criticism.

Synonyms: sarcastic, mordant, trenchant, acute

309. INCOGNITO. With one's identity concealed - traveled incognito.

310. INCONTROVERTIBLE: Indisputable - incontrovertible evidence.

Synonyms: irrefutable, -indubitable

311. INCREMENT: An increase - a salary increment.

Synonym: accrual

312. INCUMBENT (noun): An officeholder - the incumbent in an election.

(adj.): Obligatory - felt it incumbent to reply.

Synonyms: - mandatory, imperative

313. INDEFATIGABLE: Untiring - an indefatigable worker.

Synonyms:unflagging, unremitting, persevering

314. INDIGENOUS: Native - Rice is indigenous to China.

Synonyms:innate, inborn

315. INDOOMITABLE: Stubborn in determination not to be subdued - indomitable courage.

Synonyms:insuperable, irrepressible, invincible, unyielding

Antonyms:tractable, amenable, docile, submissive

316. INFERENCE: A conclusion reached by reasoning from data or premises - an inference drawn from his remarks.

Synonyms:deduction, implication

317. INGENIOUS: Demonstrating originality, skill, or resourcefulness - an ingenious device.

Synonyms:dextrous, inventive, adroit

Antonyms:maladroit, gauche

318. INGENUOUS: Simple and straightforward; concealing nothing - an ingenuous plan that anyone could see through.

Synonyms: unsophisticated, naive, candid

Antonym: sophisticated

319. INGRATIATE: To win another's favor or good opinion tried to ingratiate himself with the politician.

320. INHIBIT: To check or hinder - inhibited his friend from a foolhardy course.

Synonyms:restrain, curb

Antonym: promote

321. INNOCUOUS: Harmless; inoffensive - an innocuous remark, but it enraged him.

322. INNUENDO: An indirect reference or suggestion (frequently derogatory) - conveyed his idea by innuendo.

Synonyms: (verb) intimate, insinuate

323. INORDINATE: Excessive - spoiled by inordinate praise.

Synonyms: immoderate, intemperate, extravagant

324. INSATIABLE: Unable to be satisfied - insatiable greed

Synonyms. unappeasable, unquenchable, insatiate

325. INSCRUTABLE: Incapable of interpretation or understanding - the inscrutable smile of the Mona Lisa.

Synonyms: unfathomable, cryptic, enigmatic