pinhead
[noun]
Synonyms: dunce, cluck, dimwit, dumb bunny, dumb cluck, featherweight, lackwit, nitwit, simp, wantwit
[adjective]
Synonyms: stupid, beefheaded, beetleheaded, blockheaded, chuckleheaded, dense, doltish, fatheaded, hammerheaded, pinheaded

[TahlilGaran] English Synonym Dictionary ▲

pin‧head /ˈpɪnhed/ noun [countable]
the small round part at one end of a pin

[TahlilGaran] Dictionary of Contemporary English ▲