"cathartic" in the noun sense
1. purgative, cathartic, physic, aperient
a purging medicine stimulates evacuation of the bowels
"cathartic" in the adjective sense
1. cathartic, psychotherapeutic
2. cathartic, releasing
emotionally purging (of e.g. art)
3. cathartic, evacuant, purgative
Source: WordNet® (An amazing lexical database of English)
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