Correct option is D
The correct synonym of the given word is
Strange.
Unfamiliar: Not known or recognized; not commonly experienced or encountered. (हिंदी अर्थ: अपरिचित)
Example: I felt uncomfortable in such an unfamiliar environment.
Strange: Unusual or not known; unfamiliar. (हिंदी अर्थ: अजीब, अपरिचित)
Example: He was a strange figure in that quiet village.
Synonyms: unknown, strange, alien, novel.
Antonyms: familiar, known, usual, regular.
Meanings of all the given options:
· (a)
Prodigal: Wastefully extravagant. (फिजूलखर्ची करने वाला)
· (b)
Parallel: Something equivalent or similar. (समानांतर)
· (c)
Unsparing: Harsh or severe; not holding back. (निर्दयी)