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sycophant
someone who uses flattery to try and get what they want from an authority figure
pernicious
intending to cause harm
ubiquitous
appearing everywhere
non sequiter
a statement that does not logically follow the flow of a conversation
diatribe
a forceful and bitter verbal attack
slipshod
showing a lack of care or thought
nefarious
wicked or criminal
precursor
a person or thing that comes before another of a similar kind
impregnable
unable to be captured or broken into
demure
shy or modest