'Unrestrained' definitions:

Definition of 'unrestrained'

From: WordNet
adjective
Not subject to restraint; "unrestrained laughter" [ant: restrained]
adjective
Marked by uncontrolled excitement or emotion; "a crowd of delirious baseball fans"; "something frantic in their gaiety"; "a mad whirl of pleasure" [syn: delirious, excited, frantic, mad, unrestrained]

Definition of 'Unrestrained'

From: GCIDE

Synonyms of 'unrestrained'

From: Moby Thesaurus