- FECKLESS (ADJECTIVE): without purpose
Synonyms: aimless, carefree
Antonyms: purposeful, efficient
Example Sentence: It was a feckless attempt to make the company a success.
- MERCURIAL (ADJECTIVE): flighty, temperamental
Synonyms: changeable, impulsive
Antonyms: constant, stable
Example Sentence: His mercurial temperament made him difficult to work with his teammates.
- SPECIOUS (ADJECTIVE): misleading
Synonyms: deceptive, false
Antonyms: genuine, valid
Example Sentence: His readings are seeming to be specious.
- QUIXOTIC (ADJECTIVE): idealistic
Synonyms: impractical, dreamy
Antonyms: realistic, sensible
Example Sentence: It was clearly a quixotic case against the defendant.
- DISINGENUOUS (ADJECTIVE): Not straightforward or candid
Synonyms: unfair, cunning
Antonyms: frank, truthful
Example Sentence: It was disingenuous of her to claim she had no financial interest in the company.
- DERISIVE (ADJECTIVE): ridiculing
Synonyms: cheeky, mocking
Antonyms: polite, respectful
Example Sentence: It was a derisive act.
- ODIOUS (ADJECTIVE): extremely unpleasant
Synonyms: disgusting, horrid
Antonyms: attractive, delightful
Example Sentence: The detective said it was the most odious crime she had ever seen.
- FORTUITOUS (ADJECTIVE): lucky, accidental
Synonyms: random, chance
Antonyms: intentional, planned
Example Sentence: The check could not have arrived at a more fortuitous time.
- RAPACIOUS (ADJECTIVE): aggressively greedy or ravenous
Synonyms: ferocious, marauding
Antonyms: satisfied, contended
Example Sentence: He is a rapacious lawyer.
- HALCYON (ADJECTIVE): calm, peaceful
Synonyms: quiet, still
Antonyms: agitated
Example Sentence: It is such a halcyon place.
