very happy, overjoyed
jubilant
good at speaking clearly
articulate
based on a mistaken belief, false
fallacious
noisy, unruly, disorderly, difficult to control
obstreperous
assiduous
gushing feelings of gratitude or approval
having understanding and insight
perspicacious
might be true on the surface, but not really accurate
specious
fussy, picky, hard to please
persnickety
to grow or increase rapidly
burgeon
cheerful and full of energy, bubbly
ebullient
having great knowledge or education
erudite
hesitating, doubtful
dubious
tending to be easily angered, easily irritated
irascible
having great power or influence
potent
fond of joking and being humorous
jocular
expressed clearly, easy to understand
lucid
clandestine
bad-tempered, grumpy
surly
having great power or influence but in French
puissant
to frolic, to romp, to play
gambol
shrewd, clever, smart
astute
difficult to grasp, catch, or understand
elusive
lacking courage, cowardly, fearful
pusillanimous
remarkably impressive or great in size, enormous
prodigious