IPA: /ˈkʌmfətləs/
KK: /ˈkʌmfərtləs/
Not providing any ease or relief; causing discomfort or unhappiness.
The old, abandoned house felt comfortless and eerie.
Comparative: more comfortless
Superlative: most comfortless
Comfortless → It is formed from "comfort" (from Latin "confortare", meaning to strengthen greatly) and "-less" (meaning without). The word "comfortless" means without comfort or lacking in consolation.
Think of being 'without' ('-less') any 'strengthening' or 'consolation' ('comfort') — that's why comfortless means lacking comfort.