flimsiest
Least structurally sound
Flimsiest is the superlative of flimsy—the most insubstantial, weakest, or least convincing of a group.
Physical objects can be flimsiest: the flimsiest fabric I've ever seen.
Arguments or excuses can be flimsiest: That's the flimsiest excuse you've come up with yet.
Easily broken or harmed
- brittleLiable to shatter
- breakableCapable of shattering
- gossamerFilmy, delicate material
- diaphanousDelicately translucent
wispy · sheer · gauzy · papery · threadbare · cobwebby · insubstantial · tissue-thin
Weak and ineffective
- unconvincingNot able to persuade
- implausibleUnlikely to be true
- tenuousLacking solid foundation
- unsubstantiatedWithout supporting evidence
shaky · unsound · groundless · baseless · hollow · thin · poor · inadequate
Poorly and hastily constructed
- substandardBelow required quality
- inferiorOf lower rank
- tackyVulgar or slightly sticky
- gimcrackCheap, showy ornament
tawdry · tinny · junky · ramshackle · rickety · slipshod · makeshift · second-rate
Lasting very briefly
- fleetingPassing very quickly
- momentaryLasting very briefly
- evanescentTending to vanish quickly
- short-livedLasting only briefly
passing · impermanent · transient · brief · fugitive · perishable · vanishing · temporary
delicate
Easily broken or harmed
diaphanous · wispy · sheer · gauzy · papery · threadbare · cobwebby · insubstantial · tissue-thin · feathery
feeble
Weak and ineffective
- unconvincingNot able to persuade
- implausibleUnlikely to be true
- tenuousLacking solid foundation
unsubstantiated · shaky · unsound · groundless · baseless · hollow · thin · poor · inadequate · dubious
jerry-built
Poorly and hastily constructed
- substandardBelow required quality
- inferiorOf lower rank
- tackyVulgar or slightly sticky
gimcrack · tawdry · tinny · junky · ramshackle · rickety · slipshod · makeshift · second-rate · chintzy
ephemeral
Lasting very briefly
- fleetingPassing very quickly
- momentaryLasting very briefly
- evanescentTending to vanish quickly
short-lived · passing · impermanent · transient · brief · fugitive · perishable · vanishing · temporary · volatile