say it: BIT-ur-sweet
bittersweet is a noun and adjective meaning "poisonous perennial Old World vine having violet flowers and oval coral-red berries; widespread weed in North America". It carries 4 recorded senses.
poisonous perennial Old World vine having violet flowers and oval coral-red berries; widespread weed in North America
twining shrub of North America having yellow capsules enclosing scarlet seeds
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for bittersweet come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.