Webster's Revised Unabridged Dictionary · 1913

Tantrum

Tantrum , noun

1.
A whim; an affected air. [Colloquial and archaic] — Thackeray
2.
A display of ill-humor, especially a demonstration of rage or frustration by shouting or violent physical movements, such as the stamping of feet; called also temper tantrum. It is usually associated with children, but is sometimes seen in adults.
3.
A display of anger expressed by irrationally striking out at innocent targets or inanimate objects; as, the governor was so insulted by the article, he threw a temper tantrum and cancelled the ceremony. [figurative]