idiotish - Wiktionary, the free dictionary

From idiot +‎ -ish. Compare Dutch idioots (“idiotic”), German idiotisch (“idiotic”), Danish idiotisk (“idiotic”), Swedish idiotisk (“idiotic, stupid, insane”).

idiotish (comparative more idiotish, superlative most idiotish)

1. Like an idiot; idiotic; foolish.

• “idiotish”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

• histioid