The term "unfair competition" refers to a situation where one company or individual has an advantage over another in the same market, resulting in unequal opportunities for success. This can occur through various means such as price manipulation, false advertising, abuse of power, or other practices that give an unfair edge to one party at the expense of others. Unfair competition is generally considered undesirable and may be addressed by regulatory bodies or legal systems in order to maintain fairness and level playing field for all participants in a market.