The Greek noun adikia means unrighteousness, injustice, wickedness, or wrongdoing. It is the negation of dikaiosynē (righteousness) and occurs 25 times in the New Testament. It describes both general moral evil and specific acts of injustice — oppression, dishonesty, and violation of God's righteous standard.
Adikia is the theological opposite of dikaiosynē (righteousness/justice) and appears in foundational contexts. Romans 1:18 opens Paul's diagnosis of humanity's condition: God's wrath is revealed against 'all ungodliness and adikia of men who suppress the truth.' This adikia is not merely personal immorality but cosmic rebellion — the suppression of truth about God. John 1:9 offers the remedy: 'If we confess our sins, he is faithful and just and will forgive us our sins and purify us from all adikia.' Paul also identifies 'unrighteousness' as a spirit to be expelled from the believer: 'What fellowship can light have with darkness? What does a believer have in common with an unbeliever? What agreement is there between the temple of God and idols?' (2 Corinthians 6:14–16).