VISCOUS /ˈvɪs.kəs/ ► audio Scrabble 12 Words With Friends 15 Definition adjective having a relatively high resistance to flow. — synonyms: syrupy adjective having the sticky properties of an adhesive. — synonyms: gluey, glutinous, gummy, mucilaginous, pasty, sticky, viscid See all 19 words you can make from VISCOUS → 7-letter words Words starting with V Words ending with S ← Unscramble different letters