Sure, here are the vocabulary words from your list along with synonyms and antonyms for each word:

Affable:

Synonym: Friendly
Antonym: Aloof
Aggrandize:

Synonym: Enhance
Antonym: Diminish
Amorphous:

Synonym: Shapeless
Antonym: Well-defined
Archetype:

Synonym: Exemplar
Antonym: Aberration
Aura:

Synonym: Atmosphere
Antonym: Vacuum
Contraband:

Synonym: Illicit
Antonym: Legal
Erudite:

Synonym: Learned
Antonym: Ignorant
Gossamer:

Synonym: Delicate
Antonym: Coarse
Inscrutable:

Synonym: Enigmatic
Antonym: Transparent
Insular:

Synonym: Parochial
Antonym: Inclusive
Irrevocable:

Synonym: Unchangeable
Antonym: Reversible
Propensity:

Synonym: Inclination
Antonym: Aversion
Querulous:

Synonym: Complaining
Antonym: Content
Remonstrate:

Synonym: Protest
Antonym: Approve
Repudiate:

Synonym: Reject
Antonym: Accept
Resilient:

Synonym: Flexible
Antonym: Fragile
Reverberate:

Synonym: Resound
Antonym: Silence
Scurrilous:

Synonym: Vulgar
Antonym: Respectful
Sedulous:

Synonym: Diligent
Antonym: Lazy
Sleazy:

Synonym: Shoddy
Antonym: High-quality