augment
increase
insouciant
indifferent
circumlocution
indirect or roundabout expression
allusion
casual or indirect reference
proselytize
induce someone to convert to a religion or belief
fledgling
inexperienced;
anomaly
irregularity
ineluctable
irresistible
irascible
easily angered; irritable
facetious
joking(often inappropriately)
decimate
kill; destroy
beneficent
kindly; doing good
cognizance
knowledge
apathy
lack of caring; indifference
discrepancy
lack of consistency
incongruity
lack of harmony
levity
lack of seriousness or steadiness
imprudent
lacking caution
insipid
lacking in flavor; dull
flippant
lacking proper seriousness