whopper

1 a statement known by its maker to be untrue and made in order to deceive told a whopper to get out of jury duty Synonyms fable, fabrication, fairy tale, falsehood, falsity, fib, mendacity, prevarication, story, tale, taradiddle (or tarradiddle), untruth, lieRelated Words distortion, exaggeration, half-truth; ambiguity, equivocation, obliquity; defamation, libel, slander; perjury; bluff, fiction, pose, pretense (or pretence); humbug, jive, nonsense; canard, fallacy, misconception, myth; falsification, misinformation, misreport, misrepresentation, misstatement; deceit, deceitfulness, dishonesty, duplicity, fraudulenceNear Antonyms fact, truism, verity; honesty, truthfulness, veracity; authentication, confirmation, substantiation, validation, verificationAntonyms truth

2 something that is unusually large and powerful a whopper of a fish that won first prize in the derby Synonyms behemoth, blockbuster, colossus, dinosaur, dreadnought, elephant, Goliath, jumbo, leviathan, mammoth, mastodon, monster, titan, whale, giantRelated Words amazon, giantess; bulk, hulk; heavyweight; juggernaut, steamrollerNear Antonyms lightweight, weakling, wimp, wisp; nonentity, twerp, whippersnapperAntonyms diminutive, dwarf, half-pint, midget, mite, peewee, pygmy (also pigmy), runt, shrimp