Usage: 3 forms in 3 verses
Form Translated As     In Verse(s)
ακόλαστον Unrestrained LXX.Prov.20.1
ακολάστου of an unrestrained man LXX.Prov.21.11
ακολάστοισ for unrestrained LXX.Prov.19.29

Liddell-Scott-Jones

ἀκόλαστος (akolastos) unrestrained G:A

ἀκόλαστος-τος, ον,

undisciplined, unbridled, δῆμος[Refs 5th c.BC+]

__2 especially incontinent, licentious, [Refs 5th c.BC+]; opposed to σώφρων, [Refs 5th c.BC+]. adverb ἀκολάστως, ἔχειν[Refs 5th c.BC+]: comparative -οτέρως, ἔχεινπρός τι[Refs 5th c.BC+]
__II unpunished, with genitive, [Refs 2nd c.AD+]