imperturbable

Definitions

Unable to be upset or excited; calm.

Marked by extreme calm, impassivity, and steadiness.

Examples

Despite the chaos erupting in the office, the manager remained imperturbable and continued to work calmly.

Her imperturbable nature allowed her to handle the high-pressure situation with grace and composure.

Synonyms

composed calm unruffled serene placid cool-headed self-possessed

Antonyms

excitable agitated jittery nervous flustered anxious restless