Synonyms of flimsy

flimsy

adjective

ˈflim-zē 

1

as in unsubstantial

being of a material lacking in sturdiness or substance

a flimsy scarf that was more for decoration than for warmth

Synonyms & Similar Words

• unsubstantial
• insubstantial
• fragile
• gossamer
• gauzy
• sheer
• delicate
• filmy
• sleazy
• frothy
• fine
• feeble
• cobwebby
• transparent
• gossamery
• dainty
• frail
• diaphanous

Antonyms & Near Antonyms

• substantial
• sturdy
• durable
• tough
• heavy
• lasting
• coarse
• rough
• rude
• knockabout

2

as in unlikely

not likely to be true or to occur

"The check is in the mail" is a pretty flimsy and tired excuse

Synonyms & Similar Words

• unlikely
• dubious
• questionable
• doubtful
• improbable
• odd
• far-fetched
• impossible
• bizarre
• unapt
• implausible
• ridiculous
• incredible
• unbelievable
• inconceivable
• absurd
• foolish
• unthinkable
• unimaginable
• nonsensical
• fantastic
• outlandish
• unreal
• preposterous
• insane
• outside
• crazy
• remote
• slight
• wild

Antonyms & Near Antonyms

• probable
• likely
• plausible
• credible
• possible
• earthly
• conceivable
• potential
• believable
• liable
• imaginable

Example Sentences

Recent Examples of flimsy

The buttons, switches and rotary controls also have a satisfying action, avoiding the flimsy feel that can undermine an otherwise attractive economy-car interior. — Karl Brauer, Forbes.com, 21 July 2026

Whereas many string bikinis feel flimsy, the Pucci version offers security and moderate coverage. — Alexandra Malmed, InStyle, 16 July 2026

Plastic or Folding Chairs Nothing dates a kitchen faster than flimsy plastic seating. — Angelika Pokovba, Martha Stewart, 12 July 2026

Camp Aramoni Tonica, Illinois Near Starved Rock State Park, this boutique campground includes 11 safari-style tents outfitted with comfortable furnishings and real doors (no flimsy flaps). — Tree Meinch, Midwest Living, 11 July 2026