scintillescent Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition adjective. shining or glowing with bright light. Example Sentence They stood in the scintillescent moonlight. More Example Sentences Her dress looked scintillescent under lights. Synonyms glowing; shining; radiant Antonyms dull; dark Hear It! Say It! Write It! scintillescent Switch to cursive Start Share with your friends: