1. Repugnant – extremely distasteful; unacceptable.
Synonyms: abhorrent, revolting, repulsive, repellent, disgusting, offensive, objectionable
Antonyms: attractive, agreeable, pleasant
Usage: Because of your repugnant behavior, I no longer want to be friends with you.
2. Rapture – a feeling of intense pleasure or joy.
Synonyms: ecstasy, bliss, euphoria, elation, exaltation, joy, enchantment, delight, exhilaration
Antonyms: boredom, indifference, agonize
Usage: Her eyes were filled with rapture when he held his son for the first time.
3. Propitiate – win or regain the favour of (a god, spirit, or person) by doing something that pleases them.
Synonyms: appease, placate, mollify, pacify
Antonyms: Aggravate, annoy, scorn, displease
Usage: Only an idiot believes he can propitiate his way into heaven by giving the church all of his money.
4. Puerile – childishly silly and immature.
Synonyms: Shallow, immature, childish, trivial
Antonyms: Wise, farsighted, profound, sensible
Usage: Your jokes are puerile and not appropriate for a woman of your years.
5. Occult – relating to magical or supernatural abilities
Synonyms: Latent, ambiguous, esoteric, elusive
Antonyms:Intelligible, transparent, fathomable, scrutable
Usage: His occult mask is probably going to scare most of the guests at the costume party.
6. Nonchalant – relaxed and calm in a way that shows you do not care or are not worried about anything
Synonyms: indifferent, negligent, uncaring, heedless
Antonyms:Attentive, considerate, vigilant, scruplous
Usage: Surprisingly, the woman was nonchalant about her husband’s death.
7. Mercurial – subject to sudden or unpredictable changes of mood or mind.
Synonyms: volatile, capricious, temperamental, excitable, fickle, changeable, unpredictable, variable
Antonyms: stable, steady, constant
Usage: While my uncle is as predictable as the sunrise, my aunt is very mercurial.
8. Mutinous – refusing to obey the orders of a person in authority.
Synonyms: rebellious, insubordinate, subversive, seditious, insurgent, rebel, revolutionary
Antonyms: obedient, compliant
Usage: Mutinous employees are protesting low wages by not showing up for work.
9. Listless – lacking energy or enthusiasm.
Synonyms: uninterested, impassive; indolent, unenergetic
Antonyms: energetic, lively
Usage: The bored students were listless during the professor’s long speech
10. Knave – a dishonest individual
Synonyms: dishonest, scoundrel, vagabond, rogue
Antonyms: paragon, innocent, benefactor, idealist
Usage: After the knave stole the king’s crown, he was arrested and placed in the dungeon.