pugnacious
tough and callous by virtue of experience
flout
treat with contemptuous disregard
fretful
nervous and unable to relax
vexatious
causing irritation or annoyance
fractious
easily irritated or annoyed
importune
beg persistently and urgently
propitious
presenting favorable circumstances; likely to result in or show signs of success
concoct
make a concoction (of) by mixing
subterfuge
something intended to misrepresent the true nature of an activity
exonerate
pronounce not guilty of criminal charges
sumptuous
rich and superior in quality
revile
spread negative information about
nebulous
lacking definite form or limits
pesky
causing irritation or annoyance
trenchant
having keenness and forcefulness and penetration in thought, expression, or intellect