UNFORGIVING Scrabble 19 Words With Friends 25 Definition adjective unwilling or unable to forgive or show mercy. adjective not to be placated or appeased or moved by entreaty. — synonyms: grim, inexorable, relentless, stern, unappeasable, unrelenting See all 112 words you can make from UNFORGIVING → 11-letter words Words starting with U Words ending with G ← Unscramble different letters