a 'flimsy' piece of material
a movie with a 'flimsy' plot
a 'flimsy' [='weak'] excuse
(..) such a poor safety record. But what about the whole cover story that it's a bodyguard? He's my... I mean, is that... That's kind of flimsy, don't you think? This isn't my first rodeo, Mr. Stark. Just stick to the official statement, and soon, this will all be behind you. You've got seconds. (..)2008 Iron Man