/ ˈflɪmzi; NAmE / adjective ( flim·sier , flim·si·est )
1.
badly made and not strong enough for the purpose for which it is used
SYN rickety :
a flimsy table
2.
( of material ) thin and easily torn :
a flimsy piece of paper / fabric / plastic
3.
difficult to believe
SYN feeble :
a flimsy excuse / explanation
The evidence against him is pretty flimsy.
► flim·sily adverb
► flim·si·ness noun [ U ]
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WORD ORIGIN
early 18th cent.: probably from flimflam .