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

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

Some had Trumpian golden eagles atop the roofs, and a flimsy triumphal arch stood at the center beside the Ferris wheel. — Rob Crilly, The Washington Examiner, 30 June 2026

Unlike modern sports trading cards, which are not only hefty but often bedazzled with autographs, jersey patches, and random holograms, the Panini stickers are flimsy and meant to be abused. — Jay Caspian Kang, New Yorker, 30 June 2026