English Reference
noun

outburst

n.
US /ˈaʊtˌbɝst/ UK /ˈaʊtbɜːst/ out·burst UK spelling outburst's, outburst's

  1. 01 B2 Upper Intermediate

    a sudden, strong expression of a feeling like anger, sadness, or excitement.

    a sudden and often uncontrolled expression of strong emotion, typically directed at others.

    Simple

    He later apologised for his angry outburst during the staff meeting.

    In context

    The witness's emotional outburst in the courtroom forced the judge to call for a brief recess to restore order.

  2. 02 C1 Advanced Technical

    a sudden increase in activity or energy.

    a sudden, brief period of intense activity or energy release.

    Simple

    The sun produced a massive outburst of energy that affected satellite signals.

    In context

    Astronomers monitored the stellar outburst, noting the significant increase in luminosity over a period of just forty-eight hours.

From Earth or space, total solar eclipses provide opportunities to study the corona and the energetic outbursts released by the sun.

Smithsonian Magazine· 10 Aug 2026

Inherited from Middle English outbersten, outbresten. Cognate with Dutch uitbarsten (“to erupt; burst out”), German ausbersten (“to burst out; erupt”). By surface analysis, out- + burst.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Middle English outbersten
Level B2 · Upper Intermediate
Frequency Occasional
Updated