Lexical Definition

‎ἀκατάλυτος‎ akatálytos (ak-at-al'-oo-tos) indestructible ^G:A
from ‎Α‎ (as a negative particle) and a derivative of ‎καταλύω‎

endless.

• indissoluble, i.e. (figuratively) permanent

Abbott-Smith

**† ἀ-κατά-λυτος, -ον (< καταλύω), [in LXX: IV Mac 10:11*;]
indissoluble: He 7:16.†

Abbott-Smith References

Liddell-Scott-Jones

ἀκατάλυτος-λῠτος, ον,

indissoluble, perpetual, κράτος, ζωή, [NT+1st c.BC+]; unimpaired, [Refs]

_{LSJ Scripture Refs: Heb.7.16}