Serendipity
The occurrence of happy or beneficial events by chance.
Example: Finding my old friend at the café was pure serendipity.
Ineffable
Too great to be expressed in words.
Example: The beauty of the mountains was ineffable.
Ubiquitous
Present or found everywhere.
Example: Smartphones are ubiquitous these days.
Recondite
Difficult to understand; obscure.
Example: His research deals with recondite scientific theories.
Obsequious
Excessively eager to please.
Example: His obsequious manner annoyed his coworkers.
Ephemeral
Lasting for a very short time.
Example: The beauty of a sunset is always ephemeral.
Ebullient
Cheerful and full of energy.
Example: Her ebullient personality lights up every room.
Recalcitrant
Stubbornly refusing to obey rules.
Example: The recalcitrant employee ignored company policies.
Perfidy
Betrayal or deceitfulness.
Example: Her perfidy caused the downfall of the alliance.
Pulchritude
Physical beauty.
Example: The statue’s pulchritude captivated everyone.
Quintessential
Representing the most perfect example of something.
Example: She is the quintessential artist, passionate and creative.
Inscrutable
Impossible to understand or interpret.
Example: His expression was inscrutable, hiding his true feelings.
Munificent
Extremely generous.
Example: She gave a munificent gift to the charity.
Sanguine
Optimistic, especially in difficult times.
Example: He remained sanguine despite the bad news.
Intransigent
Unwilling to compromise.
Example: Both parties were intransigent in negotiations.
Pernicious
Having a harmful effect, especially gradually.
Example: The pernicious spread of misinformation can damage societies.
Lugubrious
Looking or sounding sad and gloomy.
Example: The movie had a lugubrious tone throughout.
Sycophant
A person who flatters others for personal gain.
Example: The CEO was surrounded by sycophants.
Tantamount
Equivalent in seriousness.
Example: Refusing to answer was tantamount to admitting guilt.
Lethargic
Lacking energy; sluggish.
Example: She felt lethargic after the long illness.
Obfuscate
To deliberately make something unclear or confusing.
Example: The politician tried to obfuscate the issue with vague answers.
Disparate
Fundamentally different or distinct.
Example: Their opinions were disparate, making compromise difficult.
Vicissitude
A change of circumstances, typically negative.
Example: The company endured many vicissitudes during the recession.
Nefarious
Wicked or criminal.
Example: The villain’s nefarious deeds shocked the town.
Sagacious
Wise and perceptive.
Example: The sagacious judge made a fair decision.