kumoaminen[Finnois]

nom
1 : the act (by someone having the authority) of annulling something previously done
2 : the speech act of answering an attack on your assertions
3 : the act of nullifying; making null and void; counteracting or overriding the effect or force of something
4 : any evidence that helps to establish the falsity of something
5 : the act of upsetting something
6 : the speech act of refuting by offering a contrary contention or argument
7 : the act of abolishing a system or practice or institution (especially abolishing slavery)
8 : the act of disturbing the mind or body