vital
essential
distinction
a difference or contrast
discord
disagreement
primitive
basic
provisions
necessary supplies
deleterious
harmful
inconsequential
not important
kindle
set fire; excite
pristine
pure; untouched; fresh
cede
surrender
reclusive
unsociable
connive
scheme
valiant
fearless
antediluvian
ancient
appalling
disgusting; horrifying; shocking
brittle
fragile
perfidious
untrustworthy
protrude
extend beyond the surface