crucial
important
acute
axial
behind the scenes
capital
cardinal
causal
causative
centermost
central
centralized
centric
centroidal
centrosymmetric
charged
clamorous
climacteric
compelling
concentrated
constitutive
critical
crying
decisive
determinative
effectual
emergent
essential
etiological
exigent
focal
formative
geocentric
high-pressure
high-priority
imperative
imperious
insistent
instant
institutive
kairotic
key
loaded
middle
middlemost
midmost
momentous
occasional
Type A
apoptosis-inducing
back-to-back
chiral
climactic
epoch-making
inat
lame duck
mint-green
run-off
seventieth
strategical
underscore
unlikeliest
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