verb (used with object)
- to make bitter; cause to feel bitterness: Failure has embittered him.
- to make bitter or more bitter in taste.
verb (tr)
- to make (a person) resentful or bitter
- to aggravate (an already hostile feeling, difficult situation, etc)
c.1600, from em- + bitter. Now rare in its literal sense; figurative meaning first attested 1630s. Related: Embittered.