Correct option is A
The correct antonym of the given word is
(a) Wavering.
Given word (Confident): It means sure of oneself; having self-belief and certainty. (Hindi meaning: आत्मविश्वासी, निश्चिंत)
Example: She was confident about her performance in the interview.
Correct answer word (Wavering): It means uncertain, hesitant, or lacking firmness in decision or belief. (Hindi meaning: डगमगाता हुआ, अनिश्चित)
Example: He gave a wavering response because he was not sure.
Synonyms (confident): assured, certain, self-reliant, positive.
Antonyms: doubtful, wavering, uncertain, hesitant.
Meanings of all the other given options:
• (b) Obscure: not clear; difficult to understand (अस्पष्ट)
• (c) Woeful: very sad or sorrowful (दुःखी, शोकपूर्ण)
• (d) Martial: related to war or military (सैन्य, युद्ध संबंधी)