Here is a list of important vocabularywords frequently tested on the GRE:
Abate
Aberrant
Abhor
Abstain
Acquiesce
Aesthetic
Alacrity
Alleviate
Ambivalent
Ameliorate
Anachronistic
Anomaly
Antagonize
Antipathy
Apathy
Appease
Arduous
Articulate
Ascertain
Assuage
Audacious
Austere
Aversion
Banal
Belie
Benevolent
Bolster
Bombastic
Brazen
Brusque
Cacophony
Capricious
Catalyst
Caustic
Censure
Chicanery
Coalesce
Coherent
Complacency
Concise
Condone
Conspicuous
Contentious
Contrite
Copious
Corroborate
Credible
Cursory
Debilitate
Decry
Deleterious
Denounce
Deride
Desecrate
Desolate
Despondent
Deviate
Diligent
Discern
Discord
Disparage
Disparate
Disseminate
Divulge
Dogmatic
Eccentric
Egregious
Elucidate
Emulate
Enigma
Ephemeral
Equanimity
Erratic
Euphemism
Exacerbate
Exculpate
Exemplary
Expedient
Extraneous
Fallacious
Fastidious
Frivolous
Garrulous
Gluttony
Gratuitous
Gregarious
Hackneyed
Hapless
Haughty
Hedonism
Heresy
Hypocrisy
Iconoclast
Immutable
Impartial
Impecunious
Impetuous
Implacable
Implicit
Inane
Please note that this is not an exhaustive list, and there are many more important vocabulary words to explore. It’s advisable to study and review a wide range of vocabulary to enhance your GRE preparation.