Open English Wordnet
Nouns
(n)suppression, crushing, quelling, stiflingforceful prevention; putting down by power or authority“the suppression of heresy”, “the quelling of the rebellion”, “the stifling of all dissent”
Adjectives
(s)crushing, devastatingphysically or spiritually devastating; often used in combination“a crushing blow”, “a crushing rejection”, “bone-crushing”