Strong's #182: akatastatos (pronounced ak-at-as'-tat-os)
from 1 (as a negative particle) and a derivative of 2525; inconstant:--unstable.
Thayer's Greek Lexicon:
̓́
akatastatos
1) unstable, inconstant, restless
Part of Speech: adjective
Relation: from G1 (as a negative particle) and a derivative of G2525
Citing in TDNT: 3:447, 387
Usage:
This word is used 1 times:
James 1:8: "A double minded man is unstable in all his ways."