Spontaneous

αβίαστος

avíastos

(done by one's own free choice, or without planning)

ακούσιος

akoúsios

(controlled and directed internally)

αυθόρμητος

afthórmitos

(self generated; happening without any apparent external cause)

αυθόρμητος

afthórmitos

(done by one's own free choice, or without planning)

αυθόρμητος

afthórmitos

(proceeding from natural feeling or native tendency without external constraint)

αυθόρμητος

afthórmitos

(arising from a momentary impulse)

αυθόρμητος

afthórmitos

(not apparently contrived or manipulated)

εθελοντικός

ethelontikós

(self generated; happening without any apparent external cause)

ενστικτώδης

enstiktódis

(proceeding from natural feeling or native tendency without external constraint)

ξαφνικός

xafnikós

(sudden, without warning)

παρορμητικός

parormitikós

(arising from a momentary impulse)

πηγαίος

pigaíos

(proceeding from natural feeling or native tendency without external constraint)

φυσικός

fysikós

(not apparently contrived or manipulated)