Preposterous antonyms | adjectives

Antonyms for Preposterous as a Adjective

• reasonable

  ridiculous
• sensible

  ridiculous
• sane

  ridiculous
• wise

  ridiculous
• rational

  ridiculous
• believable
• credible
• logical
• 

  intelligent
• sound
• serious
• realistic
• smart
• judicious
• prudent
• sagacious
• sage
• plausible
• possible
• tenable
• balanced
• bad
• poor
• plain
• practical
• responsible
• good
• brainy
• bright
• clever
• valid
• earnest
• solemn
• conceivable
• sapient
• well-advised