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. - Heb. xii. 15.

Noun	1.	bitterness - a feeling of deep and bitter anger and ill-will Synonyms: rancor, rancour, resentment, gall
	2.	bitterness - a sharp and bitter manner Synonyms: acrimony, jaundice, acerbity
	3.	bitterness - the taste experience when quinine or coffee is taken into the mouth Synonyms: bitter
	4.	bitterness - the property of having a harsh unpleasant taste Synonyms: bitter

absolute zero, acerbity, aching heart, acid, acidity, acidness, acidulousness, acridity, acridness, acrimony, agony, agony of mind, algidity, anguish, animosity, animus, antagonism, apologies, asperity, astringence, astringency, attrition, ayenbite of inwit, bad blood, bale, bile, bite, bitingness, bitter feeling, bitter pill, bitter resentment, bitterness, bitterness of spirit, bleakness, bleeding heart, briskness, broken heart, causticity, causticness, cheerlessness, chill, chilliness, choler, cold, coldness, comfortlessness, contriteness, contrition, cool, coolness, coolth, corrosiveness, crispness, crushing, cryogenics, cryology, cuttingness, decrease in temperature, depression, depth of misery, desolation, despair, discomfort, dismalness, distress, distressfulness, dreariness, edge, enmity, extremity, feud, fierceness, freezing point, freshness, frigidity, frostiness, gall, gall and wormwood, gelidity, gnashing of teeth, grief, grievousness, grip, hard feelings, harshness, hatred, heartache, heartburning, heavy heart, hostility, iciness, ill blood, ill feeling, ill will, incisiveness, inclemency, infelicity, intense cold, joylessness, keenness, lamentability, lamentation, low temperature, melancholia, melancholy, misery, mordacity, mordancy, mournfulness, nip, nippiness, pain, painfulness, pathos, piercingness, piquancy, pitiability, pitiableness, pitifulness, poignancy, point, prostration, pungency, rancor, rankling, rawness, regret, regretfulness, regrets, regrettableness, regretting, remorse, remorse of conscience, remorsefulness, repining, resentment, rigor, roughness, sadness, severity, shame, shamefacedness, shamefastness, shamefulness, sharp air, sharpness, slow burn, soreness, sorriness, sorrow, sorrowfulness, sourness, spleen, stabbingness, sting, stridency, stringency, suicidal despair, tartness, teeth, trenchancy, vehemence, vendetta, venom, violence, virulence, vitriol, wistfulness, woe, woebegoneness, woefulness, wretchedness