UNPLUMBED Scrabble 16 Words With Friends 23 Definition adjective situated at or extending to great depth. — synonyms: profound, unfathomed, unsounded Examples “The unplumbed depths of the sea will remain a mystery to land-bound humans.” See all 105 words you can make from UNPLUMBED → 9-letter words Words starting with U Words ending with D ← Unscramble different letters