IPA: /ˈwɪt.ləs.li/
KK: /ˈwɪt.ləs.li/
In a way that shows a lack of intelligence or understanding; foolishly.
He witlessly agreed to the plan without thinking it through.
Witlessly → It is formed from "wit" (from Old English *wita*, meaning knowledge or understanding) and "-less" (meaning without). The word "witlessly" means without knowledge or understanding, often implying a lack of awareness or thoughtfulness.
Think of 'wit' as knowledge or understanding, and remember that 'witlessly' means lacking that knowledge.