πικρία

Acts 8:23 For I perceive that thou art in the gall of bitterness, and in the bond of iniquity. Romans 3:14 Whose mouth is full of cursing and bitterness: Ephesians 4:31 Let all bitterness, and wrath, and anger, and clamour, and evil speaking, be put away from you, with all malice: Hebrews 12:15 Looking diligently lest any man fail of the grace of God; lest any root of bitterness springing up trouble you, and thereby many be defiled;