Dumb Synonyms

Blockish , at a loss for words, aphasic, as thick as two short planks, and birdbrained are synonyms for dumb; smart and intelligent are antonyms of dumb. On this page, you will find 75 another word for dumb.

75 Another Word for Dumb

1. speechless

  • At a loss for words
  • Close-mouthed
  • Inarticulate
  • Saying nothing
  • Silent
  • Speechless
  • Taciturn
  • Tight-lipped
  • Tongue-tied
  • Uncommunicative
  • Untalkative
  • Voiceless
  • Wordless
  • Mum

2. mute

  • Aphasic
  • Aphonic
  • Mute
  • Unable to speak
  • Without the power of speech
  • Dumb

3. stupid

  • As thick as two short planks
  • Birdbrained
  • Blockish
  • Boneheaded
  • Bovine
  • Brain-dead
  • Brainless
  • Chuckleheaded
  • Cretinous
  • Daft
  • Dead from the neck up
  • Dense
  • Dim
  • Dippy
  • Dof
  • Doltish
  • Dopey
  • Dozy
  • Dull-witted
  • Dull
  • Dunce-like
  • Dunderheaded
  • Empty-headed
  • Fat-headed
  • Foolish
  • Half-baked
  • Half-witted
  • Idiotic
  • Ignorant
  • Imbecilic
  • Lamebrained
  • Lumpish
  • Mindless
  • Moronic
  • Muttonheaded
  • Not the full shilling
  • Obtuse
  • Pea-brained
  • Simple-minded
  • Simple
  • Slow on the uptake
  • Slow-witted
  • Slow
  • Soft in the head
  • Stupid
  • Thick-skulled
  • Thick
  • Thickheaded
  • Unintelligent
  • Vacuous
  • Vapid
  • Witless
  • Wooden-headed
  • Dotish

Dumb Sentences

That was a dumb idea.

He felt dumb after losing.

Don't make dumb decisions today.

The joke was really dumb.