Unmarried
noun, の adjective
Not yet marriage? You haven't been married. You're unmarried.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
日本では未婚の割合が年々増加しています。
The percentage of unmarried people in Japan is increasing year by year.
未婚の男女を対象にした調査が行われました。
A survey was conducted targeting unmarried men and women.
未婚の友達が多いので、よく独身者同士でパーティーを開きます。
Since many of my friends are unmarried, we often hold parties for singles.