HinKhoj Dictionary

Modality (noun): A Specific mode in which something is expressed or is experienced something exists (तौर-तरीका)
Antonym: Chaos, anarchy, differences

Cognizant (adjective): Having knowledge or awareness (जानकार)
Antonym: Ignorant, indifferent, senseless

Predicament (noun): A difficult, unpleasing or embarrassing situation (अप्रिय और कठिन स्थिति जिससे बाहर निकलना कठिन हो)
Antonym: Advantage, Benefit, Agreement, Blessing

Unanimously (adverb): Without opposition / with the approval of all the people involved (सर्वसम्‍मति से)
Antonym: Differently, divergently, oppositely

Precious (adjective): of great value (बहुमूल्‍य)
Antonyms: Cheap, common, impaired, deficient

EMBROIL (verb) उलझाना
Meaning: to involve in conflict or difficulties

RIVET (verb) ध्यान आकर्षित करना
Meaning: to attract and hold (something, such as a person’s attention) completely.

ELOQUENCE (noun) वाक्पटुता
Meaning: fluent or persuasive speaking or writing.

BADINAGE (noun) परिहास
Meaning: humorous or witty conversation.

Go through with - कोई काम अंत तक करते रहना 

Do you have the determination enough to go through with this job.

Go to law - कानून का सहारा लेना

In India, people go to law on very petty issues.

Go to town - कोई काम ध्यानपूर्वक करना

The interior decorator went to town on my flat and made it like a place.

Good humour - प्रसन्नचित होना

He has got a promotion today so he is in good humour.

Hammer and tongs - बड़े जोर-जोर से

The opposition went for the government's policies hammer and tongs.

Unhindered(Adjective) : निर्बाध
Synonym: straight, non-stop

Vacillate(verb) : अस्थायी
Synonym: temporize, hesitate, oscillate

REPRIMAND(Noun) : डांटना
Synonyms: admonish, censure

Castigated(Verb) : आलोचना
Synonym: reprimand, rebuke

Encumbrance(Noun) : बाधा
Synonym: hindrance, obstruction

The moment you doubt whether you can fly, you cease for ever to be able to do it.
जिस क्षण आप यह संदेह करते हैं कि आप उड़ सकते हैं या नहीं, आप हमेशा के लिए ऐसा कर पाने की क्षमता खो देते हैं।