raconteur
a person skilled in telling anecdotes
voluble
marked by a ready flow of speech
taciturn
habitually reserved and uncommunicative
exhort
spur on or encourage especially by cheers and shouts
philippic
a speech of violent denunciation
tirade
a speech of violent denunciation
pontificate
administer a pontifical office
prolix
tediously prolonged or tending to speak or write at great length
tergiversate
be deliberately ambiguous or unclear in order to mislead or withhold information
repartee
adroitness and cleverness in reply
incongruity
the quality of disagreeing; being unsuitable and inappropriate
scoundrel
a wicked or evil person; someone who does evil deliberately
depreciatory
tending to decrease or cause a decrease in value
fulgurous
amazingly impressive; suggestive of the flashing of lightning
malevolent
wishing or appearing to wish evil to others; arising from intense ill will or hatred
palaver
loud and confused and empty talk
elocution
an expert manner of speaking involving control of voice and gesture
anecdote
short account of an incident (especially a biographical one)