The definition of dense is people or things which are crowded together, something that is difficult to get through or someone who is slow to understand.
Unwilling to talk; silent
Slow to understand or perceive; dull or insensitive
Showing or resulting from a lack of normal intelligence; foolish; irrational
The definition of thick is great depth or dense.
Mentally slow or confused; lethargic or stupid
Lacking in intelligence
Find another word for thick-witted. In this page you can discover 12 synonyms, antonyms, idiomatic expressions, and related words for thick-witted, like: blockheaded, dense, doltish, dumb, hebetudinous, obtuse, stupid, thickheaded, thick, dimwitted and dopey.