1. Humpbacked.

2. A back with a hump; a humpbacked person; a species of whale.

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

• homeback,
• humpack,
• humback,
• humbpack,
• hoppsack,
• hukaback,
• hucaback,
• huckback,
• gumpback,
• bumpback,
• numpback,
• jumpback,
• uumpback,
• yumpback,
• humpbak,
• humpbac,
• humpbakc,
• humpbackk,
• hempback,
• jamppack

• humpbacked.

The adjective form of the word "humpback" is "humpbacked".

The plural of the "humpback" can be the "humpbacks".

The singular of the "humpback" can be the "humpback".