Definition of self-defeating adjective from the Oxford Advanced Learner's Dictionary

 

self-defeating

 adjective
adjective
BrE
 
; NAmE
 
 
jump to other results
causing more problems and difficulties instead of solving them; not achieving what you wanted to achieve but having an opposite effect Paying children too much attention when they misbehave can be self-defeating. It becomes self-defeating to go on wrangling about tactics.
See the Oxford Advanced American Dictionary entry: self-defeating