adulterate
to make impure
ambidextrous
able to use both hands equally well
augment
to make larger
bereft
deprived of
deploy
to arrange strategically
dour
gloomy
fortitude
courage in facing difficulties
gape
to stare with an open mouth
gibe
to utter taunting words
guise
an external appearance
insidious
intended to deceive or entrap
intimation
an indication or hint
opulent
wealthy
pliable
flexible
reiterate
to repeat
stolid
unemotional
tentative
uncertain
unkempt
untidy
verbatim
word for word
warily
cautiously, with great care