dubious - Hesitating or doubting
tingle - A slight prickling or stinging sensation
infest - The way that insects and bugs multiply and cause disease and destruction
adversary - An enemy or opponent
antiquated - Belonging to an earlier period in history; obsolete.
swat - To hit or attempt to hit something, especially an insect, with a sharp blow from a flat object
remorse - Deep regret or guilt for a wrong committed
nuance - A subtle difference in or shade of meaning, expression, or sound
twang - A strong ringing sound such as that made by the plucked string of a musical instrument or a released bowstring
lofty - Very high
weirdo - A person whose dress or behavior seems strange
rehabilitate - To help restore a person to a former successful or healthy condition