1. Riposte – a quick, clever reply to an insult or criticism.
Synonyms: maneuver, retort, counter, rejoinder, sally, retaliation
Antonyms: question, request
Usage: She did a brilliant riposte to an insult.
2. fait accompli – an accomplished fact; a thing already done
Synonyms: done deed, star grim reality, irreversible accomplishment
Usage: The results were presented to shareholders as a fait accompli
3. Deterrent – discouraging through instilling doubt or fear of the consequences.
Synonyms: disincentive, dissuasion, obviation, preclusion, preemption
Antonyms: incentive, encouragement
Usage: Cameras are a major deterrent to crime.
4. Malaise – a general feeling of discomfort, illness, or unease
Synonyms: despair, disquiet, doldrums, illness, pain, debility, decrepitude
Antonyms: calmness, cheer, comfort
Usage: Many citizens who live near the contaminated lake are complaining of a malaise that keeps them bedridden.
5. Perilous – full of danger or risk.
Synonyms: dicey, hazardous, precarious,rugged, shaky, ticklish, treacherous
Antonyms: calm, certain, definite
Usage: The economy is in a perilous state
6. Prerogative – an exclusive right, privilege, etc.
Synonyms: entitlement, advantage, birthright, appanage, droit
Antonyms: duty, obligation
Usage: In some countries, higher education is predominantly the prerogative of the rich
7. Accentuate – make more noticeable or prominent.
Synonyms: emphasize, highlight, point up, accent, spotlight
Antonyms: divert,
Usage: Children sometimes suffer from low self-esteem when their parents constantly accentuate their mistakes.
8. Lingering – lasting for a long time or slow to end.
Synonyms: abiding, enduring, ingrained, persistent, protracted, recurrent
Antonyms: ending, ephemeral, fleeting, superficial
Usage: There are still some lingering doubts in my mind
9. Elusive – difficult to find, catch, or achieve
Synonyms: ambiguous, fleeting, illusory, incomprehensible, puzzling, subtle
Antonyms: definite, honest, intelligible. stable
Usage: Success will become ever more elusive
10. Largesse – generosity in bestowing money or gifts upon others.
Synonyms: endowment, philanthropy, benefaction, oblation
Antonyms: hindrance, malevolence, stealing
Usage: When I was in need, I benefited from the largesse of an anonymous donor.