cheaty

From cheat +‎ -y.

cheaty (comparative cheatier, superlative cheatiest)

1. (informal, of a person) prone to cheating.
   • 2009 March 4, Zoe Williams, “Paxo, you're a pint of mild”, in The Guardian‎:

     Now, to recap ... ach, you don't need a recap: winning team disqualified; cheaty accountant spoiled play; runner-up team promoted to winning team.

2. (informal) Involving cheating; fraudulent.

   a cheaty technique

• Cathey, teachy