1. Having no mate or companion.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• nateless,
• kateless,
• jateless,
• mzteless,
• msteless,
• mwteless,
• mqteless,
• mareless,
• mafeless,
• mageless,
• mayeless,
• ma6eless,
• matless,
• mateles,
• maetless,
• maatless,
• Matles,
• maitless,
• mattless,
• mattles

The adjective form of "mateless" is "unmated".

The plural form of the word "mateless" is "matelesses".

The singular form of the word "mateless" is "mateless".