adjective. Light, thin, and insubstantial.

adjective. Lacking solidity or strength; easily damaged: synonym: fragile.

adjective. Lacking plausibility; unconvincing.

noun. Thin paper usually used to make multiple copies.

noun. Something written on this thin paper.

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.

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

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

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

noun. Thin or transfer paper.

noun. A bank note.

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

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

noun. Thin typing paper used to make multiple copies.

noun. Skimpy underwear.

adjective. lacking solidity or strength

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

adjective. lacking substance or significance

adjective. not convincing

"Granted, the word "flimsy" overstates the fiction of separateness between the Republican super PACs and the candidates they are supporting."

firm  robust  strong  sturdy  

insignificant  unimportant  unpersuasive  weak  

typewriter paper  typing paper  

coarse  filmy  fragile  gaudy  gauzy  

adulterated  airy  asinine  attenuate  attenuated  

flimsier  flimsiest