TIRESOME /ˈtaɪəsəm/ Scrabble 10 Words With Friends 11 Definition adjective so lacking in interest as to cause mental weariness. — synonyms: boring, deadening, dull, ho-hum, irksome, slow, tedious, wearisome Examples “Eventually his long stories became tiresome.” See all 244 words you can make from TIRESOME → 8-letter words Words starting with T Words ending with E ← Unscramble different letters