Synonyms to unentertaining

unenjoyable, bitter, disagreeable, dislikable, displeasing, distasteful, sour, thankless, ugly, unalluring, unamusing, unappealing, unappetizing, unattractive, undelectable, undelicious, undesirable, unengaging, uneventful, unexciting, unfunny, uninteresting, uninviting, unlikable, unpalatable, unpleasant, unpleasing, unsavory, untasteful, unwelcome, unwitty, blah, broken-record, commonplace, drearisome, dreary, dry, dryasdust, dull, dusty, everlasting, harping, humdrum, invariable, jog-trot, long-winded, monotonous, ordinary, prolix, prosaic, singsong, tedious, treadmill, unexceptional, unnoteworthy, unvarying