effortless
relaxed
calm
coolheaded
easy
inexcitable
natural
nerveless
rock-steady
steady
steady-handed
steady-nerved
steel-nerved
strong-nerved
unblenching
unblinking
unfaltering
unflinching
unnervous
unquivering
unshaken
unshaky
unshrinking
untremulous
unwavering
without a tremor
and
eagle-like
flaxseed
greasefilte
immiscible
insuppressible
malted
monoterpene
neo-latin
polycyclic
saturate
steroidal
terpene
unburned
uncontrived
unskimmed
unthought