crushing

physically or spiritually devastating; often used in combination

a crushing blow

forceful prevention; putting down by power or authority

the suppression of heresy

come down on or keep down by unjust use of one's authority

The government oppresses political activists

to compress with violence, out of natural shape or condition

crush an aluminum can

come out better in a competition, race, or conflict

Agassi beat Becker in the tennis championship