Thesaurus
Synonyms & Antonyms of preposterous
- the idea that extraterrestrials built the pyramids is preposterous
Synonyms for preposterous
Words Related to preposterous
Phrases Synonymous with preposterous
- off the wall
- [slang]
Antonyms for preposterous
- a preposterous suggestion to go swimming in this freezing weather
Synonyms for preposterous
- absurd,
- asinine,
- balmy,
- brainless,
- bubbleheaded,
- cockeyed,
- crackpot,
- crazy,
- cuckoo,
- daffy,
- daft,
- dippy,
- dotty,
- fatuous,
- featherheaded,
- fool,
- foolish,
- half-baked,
- half-witted,
- harebrained,
- inept,
- insane,
- jerky,
- kooky
- (also kookie),
- loony
- (also looney),
- lunatic,
- lunkheaded,
- mad,
- nonsensical,
- nutty,
- sappy,
- screwball,
- senseless,
- silly,
- simpleminded,
- stupid,
- tomfool,
- unwise,
- wacky
- (also whacky),
- weak-minded,
- witless,
- zany
Words Related to preposterous
- airheaded,
- birdbrained,
- boobish,
- brain-dead,
- chowderheaded,
- chuckleheaded,
- clueless,
- dense,
- dim,
- dim-witted,
- doltish,
- dopey
- (also dopy),
- dorky
- [slang],
- dull,
- dumb,
- dunderheaded,
- empty-headed,
- feebleminded,
- gormless
- [chiefly British],
- idiotic
- (also idiotical),
- imbecile
- (or imbecilic),
- knuckleheaded,
- lamebrain
- (or lamebrained),
- mindless,
- moronic,
- oafish,
- obtuse,
- opaque,
- pinheaded,
- simple,
- slow,
- slow-witted,
- soft,
- softheaded,
- thoughtless,
- thick,
- thickheaded,
- unintelligent,
- vacuous
Phrases Synonymous with preposterous
Near Antonyms for preposterous
Antonyms for preposterous
- the movie thriller had such a preposterous plot that we were on the edge of our seats snickering
Synonyms for preposterous
Words Related to preposterous
- asinine,
- brainless,
- dumb,
- fatuous,
- foolish,
- half-baked,
- half-witted,
- harebrained,
- idiotic
- (also idiotical),
- imbecile
- (or imbecilic),
- inane,
- jerky,
- moronic,
- nonsensical,
- simpleminded,
- stupid,
- unwise,
- weak-minded,
- witless
- balmy,
- cockeyed,
- crazy,
- cuckoo,
- daffy,
- daft,
- dotty,
- insane,
- kooky
- (also kookie),
- loony
- (also looney),
- lunatic,
- mad,
- nutty,
- screwball,
- senseless,
- wacky
- (also whacky)
Phrases Synonymous with preposterous
Near Antonyms for preposterous
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Learn More About preposterous
From the Editors at Merriam-Webster
Internal Conflict: The One-Word Oxymoron
Internal Conflict: The One-Word Oxymoron
When a single word contains two conflicting ideas.
Cite this Entry
“Preposterous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/preposterous. Accessed 25 Oct. 2021.
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Time Traveler for preposterous
The first known use of preposterous was in 1533
See more words from the same year