Third-person singular simple present indicative form of bitter

The quality of having a bitter taste. / The quality of feeling bitter; acrimony, resentment; the quality of exhibiting such feelings. / The quality of eliciting a bitter, humiliating or harsh feeling.

plural of bitterness

Full of bitterness.

plural of bittering

Causing a bitter taste or smell.

A bitter compound used in adulterating beer.

present participle of bitter

(nautical) That part of an anchor cable which is abaft the bitts and thus remains inboard when a ship is riding at anchor.

(figuratively) Ellipsis of bitter pill to swallow. / Used other than figuratively or idiomatically: see bitter, pill.