outburst

noun

1. a sudden and violent release or outpouring: an outburst of tears.
2. a sudden spell of activity, energy, etc.
3. a public disturbance; riot; outbreak.
4. a bursting forth; eruption.

noun

1. a sudden and violent expression of emotion
2. an explosion or eruption

n.1650s, from out + burst (v.). Outbresten was a verb in Middle English (mid-12c.), from Old English utaberstan.