INDECIPHERABLE /ɪndə-/ Scrabble 24 Words With Friends 28 Definition adjective not easily deciphered. — synonyms: unclear, undecipherable, unreadable adjective impossible to determine the meaning of. Examples “The doctor's handwriting was indecipherable.” See all 1297 words you can make from INDECIPHERABLE → 14-letter words Words starting with I Words ending with E ← Unscramble different letters