11. Invulnerable (adj.)
Not able to be wounded or hurt; shielded against attack
Medieval lords did everything possible to make their castles invulnerable fortresses.
Synonyms: impregnable, impervious, immune
Antonyms: unlimited, immeasurable, everlasting, eternal
12. Malevolent (adj.)
Spiteful, showing ill will
While pretending to be a loyal friend, Iago told Othello malevolent lies.
Synonyms: malicious, wicked, sinister, malignant
Antonyms: kind, benevolent, compassionate
13. Nonchalant (adj.)
Cool and confident, unconcerned
The elegantly dressed couple strolled down the boulevard with a nonchalant air.
Synonyms: composed, unruffled, indifferent, blasé
Antonyms: perturbed, agitated, disconcerted, abashed
14. Omniscient (adj.)
Knowing everything: having unlimited awareness or understanding
Scientists today have so much specialized knowledge that they sometimes seem omniscient.
Synonyms: wise, all-knowing
Antonyms: ignorant, unknowing
15. Panacea (n.)
A remedy for all ills: cure-all: an answer to all problems
Synonyms: universal cure, easy solution
16. Scrupulous (adj.)
Exact, careful, attending thoroughly to details: having high moral standards, principled
Scientists are trained to record their observations with scrupulous accuracy.
Synonyms: painstaking, meticulous, conscientious
Antonyms: careless, negligent, remiss, dishonest
17. Skulk (v.)
To move about stealthily; to lie in hiding
The burglar skulks in the alley looking for a way to get into the darkened jewelry store without attention of anyone who might be nearby.
Synonyms: lurk, slink, prowl
18. Supercilious (adj.)
Proud and contemptuous; showing scorn because of a feeling of superiority
Their supercilious attitude toward their servants was extremely offensive.
Synonyms: snobbish, patronizing, overbearing
Antonyms: humble, meek, deferential, servile
19. Uncanny (adj.)
Strange, mysterious, weird, beyond...