This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Light, thin, and insubstantial: a flimsy fabric.

adj. Lacking solidity or strength: a flimsy table.

adj. Lacking plausibility; unconvincing: a flimsy excuse.

n. Thin paper usually used to make multiple copies.

n. Something written on this thin paper.

adj. Likely to bend or break under pressure; weak, shaky, flexible, or fragile.

n. Thin typing paper used to make multiple copies.

n. Skimpy underwear.

adj. Weak; feeble; limp; slight; vain; without strength or solidity; of loose and unsubstantial structure; without reason or plausibility.

n. Thin or transfer paper.

n. A bank note.

Without material strength or solid substance; of loose and unsubstantial structure.

Without strength or force of any kind; weak; ineffectual: as, a flimsy argument.

Synonyms Unsubstantial, thin, slight.

Feeble, trivial, shallow, superficial, frivolous, foolish, puerile.

n. A thin sort of paper by means of which several copies of a writing may be made at once; transfer-paper.

n. A bank-note, from its being made of thin paper.

n. A manifold copy of a report or despatch made on flimsy; reporters' ‘copy’; a duplicate or a triplicate writing made on flimsy.

adj. lacking solidity or strength

n. a thin strong lightweight translucent paper used especially for making carbon copies

adj. lacking substance or significance

adj. not convincing

"The leaders pointed to previous alleged assassination plots based on what they called flimsy evidence."

weak    unimportant    insignificant    unpersuasive   

firm    strong    robust    sturdy   

typing paper    typewriter paper   

flimsiest    flimsier   

superficial    shallow    vain    weak    feeble    limp    slight    unsubstantial    frail    thing   

filmy    silken    tattered    transparent    makeshift    woolen    thin    fragile    shabby    gauzy