1. In an unfair way.

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

• unfail,
• unfailry,
• entairly,
• unfarily,
• unfairely,
• unfaily,
• unfairy,
• afairly,
• ynfairly,
• hnfairly,
• unffairly,
• unfairlly,
• unfeirly,
• unfayrly,
• unferely,
• unfarely,
• unwearey,
• unsarely,
• unfadigly,
• unfearfull

• unbarreled,
• unbarred,
• unafraid,
• uniformly,
• unfirm,
• unvaried,
• unbarrelled,
• unparallel,
• unfurl,
• unpaired,
• unfairness,
• unvarying,
• unbraid,
• unfair,
• unbar.

The adverb form of the word "unfairly" is "unfairly".

The adjective form of the word "unfairly" is "unfair".

The plural form of the word "unfairly" is "unfairly". The word itself does not change when used in plural form.

The singular form of the word "unfairly" is "unfair"