Meaning: underhand, unscrupulous, or dishonest behaviour or activities.
Synonym: trickery, swindling, fraudulence
Sentence: "a firm that investigates commercial skulduggery"
Meaning: not friendly or forthcoming; cool and distant.
Synonym: distant, detached, unresponsive, remote,
Antonym: familiar, friendly
Sentence: "they were courteous but faintly aloof
Meaning: the quality of being powerfully and mysteriously attractive or fascinating.
Synonym: attraction, lure, draw, pull, appeal, glamour
Sentence: people for whom gold holds no allure"
Meaning: brisk and cheerful readiness
Synonym: eagerness, willingness, readiness
Sentence: "she accepted the invitation with alacrity"
Meaning: tending to induce drowsiness or sleep., a drug or other substance that induces drowsiness or sleep.
Synonym: sleeping pill, sleeping potion, sedative, calmative, tranquillizer, narcotic, opiate;
Antonym: invigorating, stimulant
Sentence: "the motion of the train had a somewhat soporific effect"
Meaning: ostentatiously costly and luxurious.
Synonym: luxurious, sumptuous, palatial
Antonym: penniless, poor, impoverished, penurious
Sentence: "the opulent comfort of a limousine"
Meaning: a temporary stay., stay somewhere temporarily.
Synonym: stay, visit, stop, stopover, residence;
Sentence: "her sojourn in Rome"
Meaning: insisting on immediate attention or obedience, especially in a brusquely imperious way.
Synonym: high-handed, brisk, abrupt, summary, commanding, authoritative,
Antonym: humble, meek, modest, unassuming
Sentence: "‘Just do it!’ came the peremptory reply"
Meaning: musical instruments played by striking with the hand or with a stick or beater, or by shaking, including drums, cymbals, xylophones, gongs, bells, and rattles.
Synonym: crash, bang, smash, clash, bump
Sentence: "percussion instruments"
Meaning: having a harmful effect, especially in a gradual or subtle way.
Synonym: harmful, damaging, destructive, injurious
Antonym: beneficial, benign, favourable
Sentence: "the pernicious influences of the mass media"