ἄπταιστος

áptaistos

G679 substantive adjective

SILEX Entry

Definition

Not stumbling, incapable of being tripped or made to fall, either physically or (most often in Koine) morally and spiritually; describes someone or something that does not err, fail, or succumb to error, offense, or moral failure. The word is used both literally (without stumbling in movement) and more frequently, metaphorically (incapable of committing a moral lapse or ‘sin’).

Semantic Range

not stumbling, not falling, faultless, blameless, irreproachable, unerring (morally or physically); unable to be stumbled; preserved from moral failure

Root / Etymology

From the negative prefix ἀ- (alpha privative, marking negation) and πταίω (to stumble, to trip, to make a false step). Thus, ἄπταιστος literally means 'not stumbling' or 'unable to stumble.'

Historical & Contextual Notes

ἄπταιστος is rare and primarily occurs in Hellenistic and Koine Greek literature. The term is not common in classical Greek, but appears in Jewish-Hellenistic writings and, notably, in the New Testament (e.g., Jude 24), often in contexts denoting moral integrity or steadfastness—being kept 'without stumbling.' Standard English translations often render it as 'without stumbling', 'blameless', or 'faultless,' particularly influenced by theological contexts; however, the primary sense is one of not failing or falling, whether literally or figuratively. In early Jewish and Christian writings, the word emphasizes divine power to preserve individuals from moral error or collapse. Its figurative application focuses on integrity and steadfastness rather than absolute sinlessness. Related verbs like πταίω mean ‘to trip, to err’; related adjectives may contrast with terms indicating moral or physical failure.

Original Strong's Gloss (1890)

from Α (as a negative particle) and a derivative of πταίω; not stumbling, i.e. (figuratively) without sin:--from falling.

Root Family

ἄπταιστος (aptaistos) — not stumbling, not falling, faultless, unerring

Root πται- to trip, to stumble, to err

Word Forms

1 distinct form

SIDANCE Surface Transliteration Morphology Common SIBI-P1 SIBI-P2 Occurrences
G679-01 ἀπταίστους aptaistous ADJ.S ACC M PL from stumbling unstumbling ones without stumbling 1

Occurrences in Scripture

1 occurrence

SIDANCE Reference Word Transliteration Morphology Common SIBI-P1 SIBI-P2
G679-01 Jude 1:24 ἀπταίστους aptaistous ADJ.S ACC M PL from stumbling unstumbling ones without stumbling