Without a mate or partner; solitary.

बिना साथी के; अकेला

English Usage: The mateless bird called for a companion.

Hindi Usage: अकेले पंछी ने साथी के लिए आवाज़ दी।

A partner or companion.

साथी

English Usage: She felt mateless after her partner moved away.

Hindi Usage: जब उसके साथी चले गए, तो उसने अकेलापन महसूस किया।