unrattled
Keeping one's cool
Unrattled means calm and composed, not shaken or disturbed by pressure or difficulty.
Someone who remains unrattled keeps their cool when others might panic or lose focus: She stayed unrattled through the entire crisis.
The word implies steadiness under stress—the opposite of flustered or thrown off balance.
Calm and controlled
- collectedCalm and self-possessed
- self-possessedCalm and confident
- coolheadedCalm when stressed
- level-headedCalm and sensible
self-controlled · dignified · measured · unflappable · unflustered · together · centered · balanced
Incapable of being upset
- unmovedNot stirred physically/emotionally
- unfazedNot disturbed or disconcerted
- phlegmaticUnemotionally calm, slow-reacting
- equanimousMentally calm, undisturbed
unemotional · detached · unshaken · unbothered · indifferent · dispassionate · unexcitable · thick-skinned
Untroubled and composed
- tranquilCalm and untroubled
- peacefulFree from disturbance
- placidCalm, undisturbed
- composedCalm and self-possessed
relaxed · undisturbed · quiet · still · restful · soothed · gentle · harmonious
Certain or self-possessed
- self-assuredTrusting in oneself
- secureProtected from harm
- poisedCalm and controlled
- steadfastFirmly loyal, unshakeable
unwavering · resolute · unshaken · grounded · anchored · firm · solid · stable
Showing bravery under threat
- fearlessLacking any apprehension
- dauntlessUnable to intimidate
- boldCourageous and daring
- intrepidResolutely without fear
valiant · undaunted · gutsy · plucky · stout-hearted · unintimidated · unflinching
poised
Calm and controlled
- collectedCalm and self-possessed
- self-possessedCalm and confident
- coolheadedCalm when stressed
level-headed · self-controlled · dignified · measured · unflappable · unflustered · together · centered · balanced · controlled
imperturbable
Incapable of being upset
- unmovedNot stirred physically/emotionally
- unfazedNot disturbed or disconcerted
- phlegmaticUnemotionally calm, slow-reacting
equanimous · unemotional · detached · unshaken · unbothered · indifferent · dispassionate · unexcitable · thick-skinned · impervious
serene
Untroubled and composed
composed · relaxed · undisturbed · quiet · still · restful · soothed · gentle · harmonious · content
assured
Certain or self-possessed
- self-assuredTrusting in oneself
- secureProtected from harm
- poisedCalm and controlled
steadfast · unwavering · resolute · unshaken · grounded · anchored · firm · solid · stable · steady
courageous
Showing bravery under threat
intrepid · valiant · undaunted · gutsy · plucky · stout-hearted · unintimidated · unflinching