numskulled
Lacking basic sense
Numskulled means stupid or thick-headed, describing someone who acts as if their skull contains nothing useful.
The word derives from numbskull—a head so dull it might as well be numb: a numskulled decision, Don't be so numskulled about this.
The spelling numskull (and numskulled) is more common than numbskull.
Lacking mental acuity
- doltishSlow and dense
- dumbWitless or mute
- foolishLacking good sense
- idioticExtremely lacking intelligence
moronic · obtuse · thick · unintelligent · witless · boneheaded · blockheaded · brainless
Lacking any understanding
- unawareLacking knowledge of something
- obliviousLacking any awareness
- uneducatedLacking formal instruction
- unschooledLacking formal instruction
unknowing · unlearned · untutored · benighted · uninformed · unversed · unworldly · unacquainted
Cruelly insensitive to others
- unfeelingWithout compassion or emotion
- obtuseLacking mental sharpness
- thoughtlessShowing no consideration
- inconsiderateLacking regard for others
tactless · tone-deaf · thick-skinned · blundering · indelicate · unperceptive · imperceptive · undiscerning
dimwitted
Lacking mental acuity
idiotic · moronic · obtuse · thick · unintelligent · witless · boneheaded · blockheaded · brainless · dense
clueless
Lacking any understanding
- unawareLacking knowledge of something
- obliviousLacking any awareness
- uneducatedLacking formal instruction
unschooled · unknowing · unlearned · untutored · benighted · uninformed · unversed · unworldly · unacquainted · ill-informed
callous
Cruelly insensitive to others
- unfeelingWithout compassion or emotion
- obtuseLacking mental sharpness
- thoughtlessShowing no consideration
inconsiderate · tactless · tone-deaf · thick-skinned · blundering · indelicate · unperceptive · imperceptive · undiscerning · cloddish