Learn That Word

Synonyms for Astringent (same or very similar meaning)

WordNet sense 1 (a drug that causes contraction of body tissues and canals):
astringent drug

WordNet sense 2 (sour or bitter in taste):
acerbic, acerb

WordNet sense 3 (having a sharp biting taste):
sour

WordNet sense 4 (tending to check bleeding by contracting the tissues or blood vessels):
styptic


From the ODE community, based on WordNetadd/edit