Correct option is D
The correct antonym of the given word is (d) Professional.
Amateur: A person who engages in an activity for pleasure rather than for financial benefit or professional reasons. (शौकिया व्यक्ति)
Example: He’s an amateur painter who never took formal training.
Professional: A person engaged in a specified activity as a paid occupation rather than as a pastime. (पेशेवर)
Example: She is a professional architect with over a decade of experience.
Synonyms: non-professional, layperson, novice, beginner.
Antonyms: professional, expert, specialist, trained.
Meanings of the other options:
· (a)
Hobbyist: Someone who pursues a hobby (शौक रखने वाला)
· (b)
Devotee: A person strongly devoted to something (समर्पित व्यक्ति)
· (c)
Layman: A non-professional or non-specialist (अविशेषज्ञ)