This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Engaged in dispute or argument.

n. One engaged in a dispute.

n. A participant in a dispute.

adj. Disputing; engaged in controversy.

n. One who disputes; one who argues in opposition to another; one appointed to dispute; a controvertist; a reasoner in opposition.

Disputing; debating; engaged in controversy.

n. One who disputes or debates; one who argues in opposition to another; a debater.

n. a person who disputes; who is good at or enjoys controversy

"The effect of the arrangement was that the "disputant" developer had virtually no income, but a "lavish lifestyle" the decision said."

person    mortal    individual    someone    soul    somebody   

resister    obstructionist    obstructer    logomach    arguer    debater    obstructor    logomachist    thwarter    crusader   

disputing    controvertist    disputer    contestant    contender    controversialist    controverter    debater    jangler    dialogist   

controversialist    lingster    cycler    meminit    survivalist    secularist    artillerist    fang-face    errat    follow