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Synonyms for Frothing (same or very similar meaning)

WordNet sense 1 (producing or covered with lathery sweat or saliva from exhaustion or disease):
foamy, foaming

WordNet sense 2 (not in or exhibiting good health in body or mind):
unhealthy

WordNet sense 3 (covered with or resembling small bubbles as from being agitated by beating or heating):
spumy, sudsy, bubbling, spumous

WordNet sense 4 (physically disturbed or set in motion):
agitated


From the ODE community, based on WordNetadd/edit