1 Ostensibly (adverb)
Meaning-
As appears or is stated to be true, though not necessarily so. (प्रकट रूप से)
Synonyms: Seemingly, Apparently, Supposedly, Outwardly
Antonyms- Truly, Genuinely, Really, Actually
Example-Troops were sent in, ostensibly to protect the civilian population.

2 Churlishly (adverb)
Meaning-
In a rude or very unpleasant way. (रुखाई से)
Synonyms: Rudely, Impolitely, Curtly
Antonyms- Courteously, Politely, Suavely
Example- He replied churlishly for what he has done.

3 Littoral (adjective)
Meaning-
Relating to or situated on the shore of the sea or a lake. (समुद्र-तट का)
Synonyms: Coastline, Seaboard, Coastal
Example- Three of the five Caspian littoral countries are landlocked.

4 Deterrence (noun)
Meaning-
The action of discouraging an action or event through instilling doubt or fear of the consequences.(निवारण)
Synonyms: Dissuasion, Prevention, Discouragement
Antonyms- Inducement, Encouragement
Example- Nuclear missiles remain the main deterrence against possible aggression.

5 Malign (adjective)
Meaning-
Causing harm. (हानिकारक)
Synonyms: Harmful, Baleful, Iniinical
Antonyms – Benign, Benevolent
Example- She had a strong and malign influence.

6 Threshold (noun)
Meaning-
The level at which something starts to happen. (दहलीज़)
Synonyms: Starting point, Beginning, Brink
Antonyms- Ending, Close, Completion, Omega
Example- She was on the threshold of a dazzling career.

7 Onus (noun)
Meaning-
The responsibility for something. (दायित्व)
Synonyms: Duty, Obligation, Responsibility
Antonyms- Advantage, Benefit, Gain
Example- The onus is on employers to follow health and safety laws.

8 Precipitate (adjective)
Meaning-
Done, made, or acting suddenly or without careful consideration. (हड़बड़ी करना)
Synonyms: Hasty, Hurried, Rushed
Antonyms- Unhurried, Leisurely, Unrushed
Example- Declaring victory would not only be precipitate but dangerous.

9 Commensurate (adjective)
Meaning-
Corresponding in size or degree. (आनुपातिक)
Synonyms: Proportionate, Comparable, Equal
Antonyms- Disproportionate, Incommensurate, Inappropriate
Example- Salary will be commensurate with experience.

10 Imprudent (adjective)
Meaning-
Not showing care for the consequences of an action. (बेपरवाह)
Synonyms: Unwise, Injudicious, Incautious
Antonyms – Prudent, Wise, Sensible
Example- It would be imprudent to leave her winter coat behind.