Meaning & use
temperamental
Having moods or behavior that change unpredictably; easily upset or irritated.
See it in a sentence
The old printer was temperamental and often jammed for no clear reason.
As a temperamental artist, he refused to work when anyone watched him paint.
A note on using this word
Temperamental describes both people with unpredictable moods and machines that perform inconsistently or unreliably.
Words with a similar meaning
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
even-tempered
Make it your own
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