writhing
Twisting and squirming as if in pain or struggling to escape.
prattling
Mindlessly chattering on and on about nothing of significance.
impeccable
In a state of perfection; flawess and pristine.
ulterior
Concealed and disguised, usually for devious reasons.
haphazardly
Done in a careless fashion and without planning or preparation.
crestfallen
The sadness that accompanies serious disappointment.
withering
Done in a contemptuously sneering manner capable of instilling genuine discomfort in the object of its disdain.
misshapen
Distorted out of regular shape; malformed and disproportionate.
monotonous
Boring and tediously repetitive.
catty
Spiteful and venomous behind someone's back.
odious
Thoroughly and unalterably repulsive and repugnant.
gelatinous
Jelly-like with a consistency incapable of supporting itself.
conscientiously
Meticulously devoted to attention and care and intensely focused on details and getting the job done.
callously
Done with a complete disregard for the feelings or concerns of others.
piqued
Either irritated on intrigued by something new and unknown.
culprit
The guilty party.
hooligans
Gangs of troublemakers roaming the streets and looking for trouble; soccer fans easily incited to violence.
blanched
Removal of pigments until only white remains.
petulant
Childishly sullen and rebellious.