cool head
still waters run deep
cucumber
complacently
cool cat
mild-mannered
composure
centered
cool
mellow
B
upbeat
syntonic
temper
saint
have one's wits about one
collected
countenance
philosophy
play with a full deck
clearheaded
clear-thinking
kindly
salt of the earth
better nature
psychodispositional
psychosociophilosophical
philosophical
casualness
bucking bronco
well-mannered
switched on
brainiac
pacifically
highmindedness
douce
demure
likable
cerebrotonic
imperturbability
assurance
favourite
yangire
warm
cooler heads will prevail
amicability
amicableness
calmth
class act
correct
attentiveness
rhathymia
good-humouredly
bluff
right-thinking
couth
intentively
spirit
spiritoso
no chill
person
live wire
disposed
spitfire
steely-nerved
brick wall
phlegm
good-natured
paragon
introverted
mental soundness
phlegmatic
sane
personable
easygoing
put together
mental health
tame
mugwump
gentleness
gradely
mildness
yokel
intellectual
softness
sophron
simpatico
mental balance
vessel
temperament
considerate
comfortable in one's own skin
even-mindedness
mind
navel-gazer
keep one's cool
ENFJ
mindlike