'outburst' definitions:

Definition of 'outburst'

From: WordNet
noun
An unrestrained expression of emotion [syn: effusion, gush, outburst, blowup, ebullition]
noun
A sudden intense happening; "an outburst of heavy rain"; "a burst of lightning" [syn: outburst, burst, flare-up]
noun
A sudden violent disturbance [syn: outburst, tumultuous disturbance]