Bitterness

The quality or state of being bitter, sharp, or acrid, in either a literal or figurative sense; implacableness; resentfulness; severity; keenness of reproach or sarcasm; deep distress, grief, or vexation of mind.

A state of extreme impiety or enmity to God.

Dangerous error, or schism, tending to draw persons to apostasy.

the taste experience when quinine or coffee is taken into the mouth

a feeling of deep and bitter anger and ill-will

a rough and bitter manner