Repulsive :

Answer: Option A

Refulgent : shining very brightly.
Effulgent : shining brightly, radiant,
Meek : quiet, gentle, and easily imposed on, submissive.
Alluring : powerfully and mysteriously attractive or fascinating, seductive.
Repulsive : archaic lacking friendliness or sympathy, lacking attraction.

Antonym of Repulsive is Alluring.