1. In whatever manner or degree; at all events; notwithstanding.

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

• nowever,
• howver,
• howqever,
• owever,
• whowever,
• hoever,
• hhowever,
• houwver,
• howhever,
• howevr,
• howmever,
• howeve,
• howevery,
• hovever,
• howerer,
• hoeever,
• hoewver,
• hawever,
• howeveer,
• hoewever

• hopper,
• hoover,
• hofer,
• hoper,
• hover,
• we've,
• hoffer,
• hoofer,
• Hooper,
• Whoever,
• hoefer.

The adjective form of the word "however" is "however".

The plural form of the word "however" is "howevers".

The singular form of the word "however" is "however". It is not inflected for number.