| meager |
| minus |
| mismatched |
| misplaced |
| nasty(bad, disgusting, vile, revolting, repulsive) |
| nauseating(bad, disgusting, vile, revolting, repulsive) |
| no can do(weak, skill, inadequate, unfit, inept) |
| no good(expression, weak, skill, inadequate, unfit) |
| noisome(bad, disgusting, vile, revolting, repulsive) |
| non-effective(adjective, useless, unfit) |
| non-serviceable(adjective, useless, unfit) |
| noneffective(adjective, useless, unfit) |
| not able(weak, skill, inadequate, unfit, inept) |
| not cut out for(expression, idiom, weak, inadequate, useless) |
| not have it(expression, inadequate, useless, inept, unable) |
| not ready(expression, incompetent, unqualified, inept) |
| not up to(expression, adjective, idiom, weak, skill) |
| objectionable(bad, disgusting, vile, revolting, repulsive) |
| obnoxious hostile(expression, bad, disgusting, vile, revolting) |
| odious(bad, disgusting, vile, revolting, repulsive) |