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