1. CIRCUMSPECT (ADJECTIVE): cautious
- Synonyms: careful, prudent
- Antonyms: careless, unwise
- Example Sentence: Circumspect doctors avoid recommending wrong medicines to their patients.
2. FLUKE (NOUN): chance of occurrence
- Synonyms: blessing, quirk
- Antonyms: misfortune, certainty
- Example Sentence: Their victory was a bit of a fluke.
3. INSURMOUNTABLE (ADJECTIVE): impossible
- Synonyms: unbeatable, invincible
- Antonyms: attainable, defeatable
- Example Sentence: It is an unsurmountable task to get any high degree without studying for it.
4. INTRICATE (ADJECTIVE): very complicated or detailed
- Synonyms: complex, difficult
- Antonyms: easy, straightforward
- Example Sentence: Biology is considered as an intricate subject.
5. RANCOUR (NOUN): bitterness, hatefulness
- Synonyms: animosity, hostility
- Antonyms: friendliness, kindness
- Example Sentence: Although my friend betrayed me, I have no rancour towards him.
6. EVINCE (VERB): to show, reveal
- Synonyms: manifest, demonstrate
- Antonyms: conceal, hide
- Example Sentence: His nail biting evinced that he was nervous for the interview.
7. EXPIATE (VERB): to rectify
- Synonyms: amend, correct
- Antonyms: worsen, destroy
- Example Sentence: It is better to expiate your mistakes than to find excuses.
8. METTLESOME (ADJECTIVE): brave
- Synonyms: courageous, high-spirited
- Antonyms: meek, fearful
- Example Sentence: Amit is a mettlesome boy.
9. SANGUINE (ADJECTIVE): optimistic and confident
- Synonyms: happy, cheerful
- Antonyms: morose, sad
- Example Sentence: The sanguine lady started her new business.
10. DEMUR (VERB): disagree
- Synonyms: vacillate, oppose
- Antonyms: accept, agree
- Example Sentence: There were certain reasons to demur the proposal.
