Bitterness

Bit·ter·ness

Bitterness

n.
  1. 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.
    The lip that curls with bitterness.
    — Percival.
    I will complain in the bitterness of my soul.
    — Job vii. 11.
  2. A state of extreme impiety or enmity to God.
    Thou art in the gall of bitterness, and in the bond of iniquity.
    — Acts viii. 23.
  3. Dangerous error, or schism, tending to draw persons to apostasy.
    Looking diligently, . . . lest any root of bitterness springing up trouble you.