Erudite
Having or showing great knowledge
equivocal
difficult to understand, explain
lucid
very clear and easy to understand
precipitate
make happen quickly
assuage
make (unpleasant) feeling less intense
prodigal
wastefully extravagant
fervid
intensely enthusiastic or passionate
placate
to make someone less angry
zeal
a strong feeling of enthusiasm which makes people eager to learn something.
dessicate
remove the moisture from something
laudable
deserving praise and commendation
pedant
someone obsessed with details or expressing learning
vacillate
waver between different opinions
adulterate
make something weaker by adding something of less quality
capricious
changes easily mood
engender
to produce/give rise to
loquatious
tends to talk a lot
corroborate
to confirm/make more certain
ephemeral
lasts a very short time
laconic
use very few words
mitigate
make less severe/painful
propriety
the state of being proper
advocate
publicly recommend
cacophony
mixture of sounds (unpleasant)