English vocabulary · C1
Unperturbed
/ˌʌn.pɚˈtɜːrbd/ · adj.
It means staying calm and not bothered — even when something goes wrong or is hard.
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Example sentences
- She stayed unperturbed as the crowd grew loud.
- Unperturbed by the delay, he kept reading.
Word origin and roots
from Latin
- un — not (from Latin)
- perturb — disturb (from Latin)
Synonyms and nuances
- CALM — free from worry (Quiet & steady inside)
- COMPOSED — in full control of feelings (Controlled under pressure)
- UNFAZED — not affected by shock (Not shocked or shaken)
Words with the same root
perturb — disturb
- perturb — to make someone worried or upset
- perturbation — a state of being worried or upset
Lesson notes
Unperturbed. It means staying calm and not bothered — even when something goes wrong or is hard.
Similar words are calm, composed, and unfazed. Use unperturbed when someone stays still and cool under strong pressure.
She stayed unperturbed as the crowd grew loud. Unperturbed by the delay, he kept reading.
From Old English. un- means not. perturb- means disturb. Not disturbed at all — that is unperturbed.