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Synonyms

flimsy

American  
[flim-zee] / ˈflɪm zi /

adjective

flimsier, flimsiest
  1. without material strength or solidity.

    a flimsy fabric; a flimsy structure.

    Synonyms:
    unsteady, unstable, weak, shoddy
    Antonyms:
    sturdy
  2. weak; inadequate; not effective or convincing.

    a flimsy excuse.

    Synonyms:
    vague, lame, unconvincing

noun

plural

flimsies
  1. a thin kind of paper, especially for use in making several copies at a time of an article, telegraphic dispatch, or the like, as in newspaper work.

  2. a copy of a report or dispatch on such paper.

flimsy British  
/ ˈflɪmzɪ /

adjective

  1. not strong or substantial; fragile

    a flimsy building

  2. light and thin

    a flimsy dress

  3. unconvincing or inadequate; weak

    a flimsy excuse

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. thin paper used for making carbon copies of a letter, etc

  2. a copy made on such paper

  3. a slang word for banknote

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • flimsily adverb
  • flimsiness noun

Etymology

Origin of flimsy

1695–1705; flim- (perhaps metathetic variant of film ) + -sy

Explanation

You can describe weak, thin, and fragile things as flimsy. Onion smells are strong, onion skins are flimsy. Blaming onions for making you cry during a sad movie, that's a flimsy excuse, when there are no onions in the theater. A flimsy object and a flimsy objection or excuse are both without weight and are easy to knock down. You can see right through a flimsy curtain, and you can see right through a flimsy lie. If a tent or house of cards is flimsy, it will fall down with a slight breeze, and if your story isn't convincing anyone, it's probably weak and flimsy enough to flatten, too.

Keep Reading on Vocabulary.com

Vocabulary lists containing flimsy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Some have rejected the film as flimsy satire; others have wanted its message to be edgier and more obvious.

From Salon • Apr. 9, 2026

When we approached our PBM about distributing the discounted version, the team refused, citing every flimsy excuse it could muster.

From MarketWatch • Apr. 7, 2026

His team were outstanding in the first 40 minutes as they carved open a flimsy Munster side.

From BBC • Apr. 4, 2026

But the key point where these arcs intersect is pretty flimsy, hinging on convincing us that Grace, the greatest guy in the universe, has a personality defect that we don’t believe.

From Los Angeles Times • Mar. 18, 2026

We strolled along the walkway between the road and the beach, past pushcarts piled high with corn and peanuts and hawkers selling multicolored plastic balls and cricket bats, flimsy kites, toys, dolls, pinwheels.

From "The Bridge Home" by Padma Venkatraman