A noun denoting provocation, anger, or wrath. Ephesians 4:26 uses it in the difficult command: be angry but do not sin; do not let the sun go down on your anger. The term marks anger as something requiring immediate resolution rather than cultivation. Paul's ethic acknowledges anger's place (righteous indignation exists) while insisting on temporal limits—anger harbored overnight becomes sin. The daily sunset becomes God's timer for reconciliation.