touchy, thorny, knotty, vexed, dicey, tricky, prickly, contentious, nettlesome, weighty, delicate, stickiest, awkward, hot potato, sticky wicket, uncomfortable, squirmy, sensitive, problematic, piquant, complicated, peculiar, perplexing, unresolvable, controversial, tense, testy, hairy, intractable, discomforting, tactful, stinky, pertinent, topical, squishy, tetchy, lighthearted, germane, feely, messy, squeamish, agreeable, uneasy, difficult, troublesome, unresolved, abstruse, indelicate, debatable, imponderable, murky, itchy, intriguing, irksome, titillating, tough, daunting, emotive, oddest, irresolvable, philosophical, interesting, unsettled, quizzical, comical, juicy, unsolvable, serious, crucial, congenial, peevish, silly, disputable, sagacious, queasy, problematical, unpleasant, averse, smelly, waggish, hot, solomonic, fuzziest, iffy, meaty, sweet, terminological, puzzling, irritating, funny, mystifying, philosophic, frisky, recriminatory, heated, perilous, unromantic, frolicsome, prickle, divisive, definitional, painful, trickiest, trickier, dangerous, challenging, chancy, vexing, trying, easiest, hardest, frustrating, unimportant

hard