What does ἀκάθαρτος · πνεῦμα mean in the Bible?
ἀκάθαρτος · πνεῦμα is a Greek phrase meaning "unclean spirit".
Greek · G169, G4151
ἀκάθαρτον πνεῦμα
Impure (ceremonially, morally (lewd) or specially, (demonic)) · spirit/breath: spirit
Reading a lexicon entry
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Words in this compound — expand to study each participant
ἀκάθαρτοςG169impure (ceremonially, morally (lewd) or specially, (demonic))
Pronunciationakáthartos
Unclean spanning ceremonial impurity, moral corruption, and demonic possession—Judaism's ritual purity framework applied theologically.
Open lexicon entry →πνεῦμαG4151spirit/breath: spirit
Pronunciationpneûma
Spirit as the immaterial dimension of human existence, or God's transformative power, distinct from soul and body.
Open lexicon entry →What does ἀκάθαρτον πνεῦμα (akatharton pneuma) mean in the Bible?
ἀκάθαρτος · πνεῦμα is a Greek phrase meaning "unclean spirit".
Full entry for ἀκάθαρτον πνεῦμα (G169, G4151) · Open the biblical lexicon
Questions this entry answers
How many biblical occurrences are listed for G169, G4151?
G169, G4151 is connected to 32 lexical occurrence verses in the lexicon data.
Evidence Summary
Greek phrase. unclean spirit
Source Gloss
unclean spirit
Grammatical Forms
How this word appears across different grammatical cases and numbers.
This word appears as a noun across 10 case and number patterns. The form changes show how the word functions in a sentence; they do not change the basic lexical meaning by themselves.
Form patterns10Aligned forms32Case patternGenitive (9)Number patternSingular (20)
Nominative · Singular · NeuterMatt 12:43 · Mark 1:26 · Mark 5:8 · Luke 11:24 · Acts 11:85×
Nominative · Plural · NeuterMark 3:11 · Mark 5:13 · 1 Cor 7:143×
Nominative · Singular · MasculineEph 5:51×
Genitive · Singular · NeuterLuke 4:33 · 2 Cor 6:17 · Rev 18:25×
Genitive · Plural · NeuterMatt 10:1 · Mark 6:7 · Luke 6:18 · Acts 5:164×
Dative · Singular · NeuterMark 1:23 · Mark 5:2 · Mark 9:25 · Luke 8:29 · Luke 9:425×
Dative · Plural · NeuterMark 1:27 · Luke 4:362×
Accusative · Singular · NeuterMark 3:30 · Mark 7:25 · Acts 10:143×
Accusative · Plural · NeuterActs 8:7 · Rev 16:13 · Rev 17:43×
Accusative · Singular · MasculineActs 10:281×
Word Origins
ἀκάθαρτον πνεῦμα is built from these roots: