ಅವಿವಾಹಿತ ಯುವತಿ (Avivāhita yuvathi)

ಹೆಂಗಸು (Hengasu): This is the most general term for “woman” and can be used for referring to a young woman in a neutral way.
ಯುವತಿ (Yuvathi): This specifically means “young woman” and carries a subtle connotation of elegance and grace.