proclivity
inclination; natural tendency
prodigious
marvelous, enormous
profligate
dissipated, wasteful; wildly immoral
relinquish
give up something with reluctance; yield
resplendent
dazzling, glorious, brilliant
sectarian
relating to a religious faction or sub-group
stagnant
motionless
stoic
impassive, unmoved by joy or grief
terse
concise, abrupt, pithy
vilify
slander
vindictive
out for revenge
voluble
fluent, talkative
whimsical
capricious
surreptitious
secret, hidden
sequester
isolate
reproach
express disproval of
raze
destroy completely
propitious
favorable, fortunate
pretentious
ostentatious
precocious
advanced in development
oblivion
obscurity, forgetfulness
mutability
ability to change in form, fickleness
mollify
soothe
misanthrope
one who hates mankind
mercurial
capricious, changing, fickle