List of 426 Sets of Synonyms - How they Differ - Total of 2307 Words - 381

SYNONYMS: stupid, slow, dumb, dull, obtuse, dense.
These adjectives mean lacking or marked by a lack of intellectual acuity.

Stupid, the most inclusive, means wanting in intelligence: Despite a lack of formal education, she was far from stupid.
Slow and dumb imply chronic sluggishness of perception, reaction, or understanding: The school offers special tutorials for slow learners. It was dumb to say yes.
Dull suggests a lack of keenness of intellect: It is the dull man who is always sure.
Obtuse implies a lack of quickness, sensitivity, or perceptiveness: At the time, I was too obtuse to grasp the true implications of her behavior.
Dense suggests impenetrability of mind: The woman kept signaling that it was time to leave, but her escort was so dense that he just kept sitting there.