| ungrateful(adjective, difficult, rude, inconsiderate, grateful) |
| unthankful(adjective, rude, inconsiderate, grateful, churlish) |
| thoughtless(adjective, rude, inconsiderate, unappreciative, ungrateful) |
| unappreciative(adjective, rude, grateful, churlish, ungrateful) |
| unrequited(adjective, unappreciated) |
| unappreciated(adjective, grateful) |
| unpleasant(adjective, pain, rude, disagreeable, lousy) |
| disagreeable(adjective, pain, unpleasant, lousy, unsatisfactory) |
| heedless(adjective, rude, inconsiderate, churlish, unappreciative) |
| unrewarding(adjective, difficult, unsatisfactory, trying, fruitless) |
| distasteful(adjective, pain, disagreeable, lousy, unsatisfactory) |
| fruitless(adjective, difficult, unsatisfactory, trying, unappreciated) |
| unwelcome(adjective, pain, disagreeable, lousy, annoying) |
| useless(adjective, unappreciated) |
| vain(adjective, unappreciated) |
| careless(adjective, rude, inconsiderate, churlish, unappreciative) |
| displeasing(noun, adjective, pain, unpleasant, disagreeable) |
| self-centered(adjective, rude, inconsiderate, churlish, unappreciative) |
| ungracious(adjective, rude, inconsiderate, churlish, unappreciative) |
| bad(adjective, pain, unsatisfactory, fruitless, unfulfilling) |