Searching for synonyms for dumb? Here’s some similar words from our thesaurus you can use instead.

• “lacking intellectual acuity“
• “so dense he never understands anything I say to him“
• “never met anyone quite so dim“
• “although dull at classical learning, at mathematics he was uncommonly quick- Thackeray“
• “dumb officials make some really dumb decisions“
• “he was either normally stupid or being deliberately obtuse“
• “worked with the slow students“

Synonyms

• dense permitting little if any light to pass through because of denseness of matter; hard to pass through because of dense growth; having high relative density or specific gravity; slow to learn or understand
• dim switch (a car’s headlights) from a higher to a lower beam ; become dim or lusterless; make dim or lusterless; make dim by comparison or conceal ; become vague or indistinct; lacking in light; lacking clarity or distinctness; made dim or less bright; offering little or no hope; slow to learn or understand
• dull make dull in appearance; become dull or lusterless in appearance; deaden (a sound or noise), especially by wrapping ; make numb or insensitive; make dull or blunt; become less interesting or attractive ; make less lively or vigorous; lacking in liveliness or animation; emitting or reflecting very little light; being or made softer or less loud or clear; so lacking in interest as to cause mental weariness; (of color) very low in saturation; not keenly felt; slow to learn or understand; (of business) not active or brisk; not having a sharp edge or point; blunted in responsiveness or sensibility; not clear and resonant; darkened with overcast
• obtuse of an angle; (of a leaf shape) rounded at the apex ; lacking in insight or discernment; slow to learn or understand
• slow without speed (`slow’ is sometimes used informally for `slowly’); of timepieces; lose velocity; become slow or slower; cause to proceed more slowly; not moving quickly; at a slow tempo; slow to learn or understand; (used of timepieces) indicating a time earlier than the correct time; so lacking in interest as to cause mental weariness; (of business) not active or brisk

• “struck dumb“
• “speechless with shock“

Synonyms

• speechless temporarily incapable of speaking

• “dumb animals“

Synonyms

• mute deaden (a sound or noise), especially by wrapping ; expressed without speech; unable to speak because of hereditary deafness ; a deaf person who is unable to speak ; a device used to soften the tone of a musical instrument
• silent marked by absence of sound; failing to speak or communicate etc when expected to; implied by or inferred from actions or statements; not made to sound; having a frequency below or above the range of human audibility; unable to speak because of hereditary deafness