Spartan
accepting
armed with patience
assured
automated
automatic
automatous
balanced
collected
composed
confident
continent
controlled
cool
cybernated
disciplined
endurant
enduring
equanimous
equilibrious
firm-minded
forbearing
forward
importunate
independent
indulgent
lenient
levelheaded
long-suffering
longanimous
patient
patient as Job
persevering
philosophical
poised
pushy
recollected
reserved
restrained
self-acting
self-active
self-adjusting
self-asserting
self-assertive
self-assured
self-closing
self-confident
abstemious
circumspect
considerate
dispassionate
hardworking
heedful
high-minded
public-spirited
sagacious
sedate
self-contained
self-governing
self-possessed
self-reliant
self-supporting
stoical
temperate
unassuming
uneventful
vigilant
well-behaved
wide-awake
confused
excited