NEBULOUS /ˈnɛbjʊləs/ ► audio Scrabble 10 Words With Friends 15 Definition adjective lacking definite form or limits. — synonyms: cloudy, nebulose adjective of or relating to or resembling a nebula. — synonyms: nebular adjective lacking definition or definite content. — synonyms: unfixed See all 113 words you can make from NEBULOUS → 8-letter words Words starting with N Words ending with S ← Unscramble different letters