rivalrous

adj

1. Having a relationship of rivalry.

   “In “Before the Devil Knows You’re Dead,” Mr. Lumet’s 45th film, Philip Seymour Hoffman and Ethan Hawke play rivalrous brothers whose bungled robbery of their parents’ modest jewelry store in Westchester County begins a cycle of quasi-Greek family tragedy without a catharsis.”

   “Western universalism was real, if rivalrous.”

2. Which can be consumed by no more than one person at the same time.

   “Rivalrous goods are those which can be consumed by only one person at the same time – for example, a candy bar or a suit; […]”