imperturbable
Calm under pressure
Imperturbable describes someone who remains calm and unshaken regardless of circumstances.
An imperturbable person doesn't rattle easily—they maintain composure under pressure, criticism, or chaos: The imperturbable detective listened to the confession without changing expression.
The word suggests an almost unnervingly steady temperament, whether admirable or frustrating to those around them.
Unshakable mental steadiness
- aplombSelf-assured composure
- poiseGraceful, unshakable calm
- sangfroidImperturbable calm
- self-possessionCalm control of oneself
unflappability · coolheadedness · self-control · steadiness · nonchalance · demeanor · self-assurance · patience
Impossible to disturb
- placidCalm, undisturbed
- phlegmaticUnemotionally calm, slow-reacting
- equableCalm and unvarying
- coolheadedCalm when stressed
collected · unexcitable · even-tempered · easygoing · laid-back · mellow · unbothered · nonchalant
Calm and untroubled
- peacefulFree from disturbance
- calmFree from agitation
- unruffledEmotionally undisturbed, placid
- zenMeditative calm
halcyon · repose · quietude · stillness · restful · undisturbed · pacific · gentle
Impossible to disturb
- steadfastFirmly loyal, unshakeable
- unwaveringSteady and unchanging
- immovableIncapable of being shifted
- rock-solidUtterly firm and reliable
indomitable · unswerving · unfaltering · staunch · unflinching · firm · grounded · anchored
Without visible emotion
- unemotionalLacking outward feeling
- dispassionateFree from emotional involvement
- detachedApart or uninvolved
- unmovedNot stirred physically/emotionally
stolid · stoical · indifferent · aloof · unresponsive · inscrutable · expressionless · deadpan
equanimity
Unshakable mental steadiness
self-possession · unflappability · coolheadedness · self-control · steadiness · nonchalance · demeanor · self-assurance · patience · forbearance
unflappable
Impossible to disturb
- placidCalm, undisturbed
- phlegmaticUnemotionally calm, slow-reacting
- equableCalm and unvarying
coolheaded · collected · unexcitable · even-tempered · easygoing · laid-back · mellow · unbothered · nonchalant · sedate
tranquil
Calm and untroubled
zen · halcyon · repose · quietude · stillness · restful · undisturbed · pacific · gentle · soothing
unshakable
Impossible to disturb
- steadfastFirmly loyal, unshakeable
- unwaveringSteady and unchanging
- immovableIncapable of being shifted
rock-solid · indomitable · unswerving · unfaltering · staunch · unflinching · firm · grounded · anchored · centered
impassive
Without visible emotion
- unemotionalLacking outward feeling
- dispassionateFree from emotional involvement
- detachedApart or uninvolved
unmoved · stolid · stoical · indifferent · aloof · unresponsive · inscrutable · expressionless · deadpan · poker-faced
- composurecalm, calmness, composure, composed, poise
- calming phrasesstay calm, calm down, relax, keep your cool, take it easy
imperturbableexcitable
Easily aroused emotionally
agitated · volatile · perturbable · temperamental · high-strung