| annul |
to make nonexistent or ineffective; cancel. [1/2 definitions] |
| break down |
to become ineffective or unable to function. [1/4 definitions] |
| counter3 |
to respond to in order to make ineffective; oppose. [1/8 definitions] |
| crack |
to cause damage to; make ineffective. [1/15 definitions] |
| fail |
to be or become ineffective or unsuccessful; be lacking in an effort or attempt. [1/10 definitions] |
| feckless |
weak or incompetent; ineffective. [1/2 definitions] |
| feeble |
insufficient or ineffective. [1/3 definitions] |
| futile |
unlikely to produce or incapable of producing a desired result; ineffective; useless. [1/2 definitions] |
| handcuff |
to render powerless or ineffective. [1/3 definitions] |
| idle |
futile or useless; ineffective. [1/10 definitions] |
| inefficacious |
unable to produce the desired result; useless; ineffective. |
| inefficient |
not producing or incapable of producing an intended effect; ineffective. [1/2 definitions] |
| lame duck |
one who is weak, ineffective, unusable, or worthless. [1/2 definitions] |
| negate |
to render ineffective or invalid; nullify. [1/2 definitions] |
| neutralize |
to cause to be ineffective; counteract. [1/3 definitions] |
| pathetic |
miserably ineffective or inadequate; worthy of arousing scorn or ridicule. [1/2 definitions] |
| potshot |
a casual and ineffective action or attempt. [1/4 definitions] |
| suspend |
to cause to be temporarily ineffective. [1/7 definitions] |
| tamper1 |
to meddle so as to damage, alter, or render something ineffective or harmful (usu. fol. by "with"). [1/2 definitions] |
| trite |
ineffective or stale because of frequent repetition; commonplace; hackneyed. |
| vitiate |
to make (a legal document or the like) ineffective or invalid. [1/2 definitions] |