soltero

soltero
sohl-tehr'-oh
single, unmarried
Examples
1. Mi tía es soltera y es feliz.
My aunt is single and happy.
 
2. ¿Eres soltero o casado?
Are you single or are you married?
 
Notes
"Soltero" and "soltera" can also be used as nouns to describe a single man and a single woman.