Simple Definition of tantrum

from our Learner's Dictionary

tantrum

noun

plural tantrums
: an uncontrolled expression of childish anger : an angry outburst by a child or by someone who is behaving like a child
When he doesn't get his way, he has/throws a tantrum. [=he gets very angry and upset and behaves like a child]
a temper tantrum

Cite this Entry

“Tantrum.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/tantrum. Accessed 19 Jun. 2026.

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