Grade 12 Spelling Words

116 words every grade 12 speller should know, each with a kid-friendly definition. Hear them read aloud and practice for free with the Spellaroo spelling quiz.

Vocabulary Words (116)

WordDefinition
abatebecome less intense
abdicategive up power or responsibility
aberrantdeparting from accepted standard
abjuresolemnly renounce belief
abscondleave hurriedly and secretly
abstainrestrain oneself from indulging
admonishwarn or reprimand firmly
aestheticrelating to beauty
affablefriendly and easy to talk to
aggregatewhole formed by combining parts
alleviatemake suffering less severe
altruisticshowing unselfish concern
ambiguoushaving more than one meaning
amenableopen and responsive to suggestion
analogouscomparable in certain respects
anarchystate of disorder
anecdotalbased on personal accounts
animositystrong hostility
anomalysomething unusual
anthologycollection of literary works
antiquatedbelonging to former times
apathylack of interest or concern
apocalypticdescribing end of world
appeasepacify by acceding to demands
arbitrarybased on random choice
archetypevery typical example
ardententhusiastic or passionate
articulateto express clearly
ascertainfind out for certain
assiduousshowing dedication
asylumprotection from danger
atrophygradually decline in effectiveness
augmentmake greater by adding
auspiciousconducive to success
authenticgenuine; real
autocratictaking no account of others
autonomoushaving freedom of action
avariceextreme greed for wealth
belligerentaggressive; hostile
benigngentle and kindly
bombastichigh-sounding but meaningless
bureaucracysystem of government
candidtruthful and straightforward
catalystagent causing change
catharticproviding psychological relief
causticsarcastic in bitter way
cessationfact or process of ending
chasmdeep fissure or division
chronologicalarranged in time order
clandestinekept secret or hidden
coalescenceprocess of coming together
conundrumdifficult problem or puzzle
credulitytendency to believe readily
culminatereach a climax or point of highest development
cynicperson who believes people are motivated by self-interest
debaclesudden disastrous collapse or defeat
decadentcharacterized by moral decline
deferencehumble submission and respect
demagoguepolitical leader appealing to prejudices
deplorabledeserving strong condemnation
desolatedeserted and giving impression of bleak emptiness
despoticexercising power in cruel way
dexterousshowing skill with hands
diffidentmodest or shy due to lack of confidence
dilettanteperson with superficial knowledge
discorddisagreement between people
disdainfeeling that something is unworthy
disparageregard as being of little worth
duplicitydeceitfulness in speech or conduct
ebullientcheerful and full of energy
eclecticderiving ideas from broad range of sources
egregiousoutstandingly bad or shocking
elusivedifficult to find, catch, or achieve
enigmaticdifficult to interpret or understand
equivocalopen to more than one interpretation
euphemismmild term substituted for harsh one
exacerbatemake problem or situation worse
exonerateabsolve someone from blame
expedientconvenient and practical
fatuoussilly and pointless
fecundproducing many new ideas
flagrantconspicuously or obviously offensive
flippantnot showing proper respect
frivolousnot having serious purpose
garrulousexcessively talkative
gratuitousuncalled for; lacking good reason
hereticalbelieving in or practicing heresy
histrionicoverly theatrical or dramatic
hyperboledeliberate exaggeration
idiosyncraticrelating to idiosyncrasy
ignominiousdeserving or causing public disgrace
impertinentnot showing proper respect
impetuousacting quickly without thought
inadvertentdone without conscious intention
incisiveaccurately analytical
incontrovertiblenot able to be denied
indolentwanting to avoid activity
ineffabletoo great to be expressed in words
inepthaving or showing no skill
inexorableimpossible to stop or prevent
inscrutableimpossible to understand
intransigentunwilling to change views
irasciblehaving or showing tendency to anger
jocularfond of joking; humorous
lackadaisicallacking enthusiasm
lasciviouslustful; lecherous
licentiouspromiscuous and unprincipled
lugubriouslooking or sounding sad
mercurialsubject to sudden changes of mood
myriadcountless or extremely great number
onerousinvolving great effort or difficulty
piousdevoutly religious
platituderemark lacking originality
sedulousshowing dedication and diligence
vitriolicfilled with bitter criticism
xenophobichaving dislike of people from other countries