Synonyms for Preposterous

Synonyms starting with letter F

• foolish

  ridiculous, absurd, unreasonable
• farcical

  absurd, ridiculous, property
• fantastic

  unimaginable, ridiculous, unreasonable
• fatuous
• fanciful
• fallacious

  illogical
• far-fetched
• farfetched

  outlandish
• funny
• fabulous
• far-out

  ridiculous
• foolhardy
• fishy
• fantastical
• flagrant
• futile
• faulty
• full of holes
• fancy
• flaky
• flighty
• false
• freakish
• foreign
• feebleminded
• frivolous
• flimsy
• fool
• flashy
• flamboyant
• fictional
• fictitious
• floating
• fictive
• fairy-tale
• fancied
• frenzied
• full of hot air
• fanatical
• for grins