Irrepressible

a.

1.

Not capable of being repressed, restrained, or controlled; as, irrepressible joy; an irrepressible conflict.

Adj.

1.

irrepressible - impossible to repress or control; "an irrepressible chatterbox"; "uncontrollable laughter" Synonyms: uncontrollable

abandoned, beaming, beyond control, blithe, blithesome, boisterous, breachy, bright, bright and sunny, bubbling, buoyant, cheerful, cheery, contumacious, defiant, ebullient, effervescent, elated, enthusiastic, eupeptic, euphoric, exalted, exhilarated, flushed, fractious, genial, glad, gladsome, glowing, go-go, happy, high, hopeful, immoderate, in good spirits, in high spirits, incontinent, incorrigible, indocile, indomitable, indulgent, insuppressible, intemperate, intractable, laughing, lax, licentious, loose, nonrestrictive, obstreperous, of good cheer, optimistic, out of control, out of hand, permissive, pleasant, radiant, rampant, recalcitrant, refractory, reinless, resistant, resisting, restive, rhapsodical, riant, riotous, rosy, sanguine, sanguineous, shrewish, smiling, sparkling, sunny, unbiddable, unbridled, unchecked, uncoerced, uncompelled, unconstrained, uncontrollable, uncontrolled, uncurbed, unforced, ungovernable, ungoverned, uninhibited, unmalleable, unmanageable, unmastered, unmeasured, unmoldable, unmuzzled, unreined, unrepressed, unreserved, unrestrained, unrestrictive, unruly, unstoppable, unsubdued, unsubmissive, unsuppressed, wanton, wild, winsome