01 n. The quality or state of being bitter, sharp, or acrid, in either a literal or figurative sense; implacableness; resentfulness; severity; ke…
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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.
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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.
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Dangerous error, or schism, tending to draw persons to apostasy.“Looking diligently, . . . lest any root of bitterness springing up trouble you.” — Heb. xii. 15.