IMPERCEPTIBLE Scrabble 23 Words With Friends 29 Definition adjective impossible or difficult to perceive by the mind or senses. — synonyms: unperceivable Examples “We all missed the imperceptible shake of his head as he tried to warn us without being seen.” See all 370 words you can make from IMPERCEPTIBLE → 13-letter words Words starting with I Words ending with E ← Unscramble different letters