"Sporadic appearances" refers to something that happens or occurs irregularly, at random intervals, or unpredictably.
Sentences with «sporadic appearances»
Of the players who lifted the U20 World Cup against Venezuela a few months ago, Kyle Walker - Peters, Ademola Lookman, Dominic Calvert - Lewin, Josh Onomah, and Dominic Solanke have managed sporadic appearances for their respective clubs. (footballnewsdaily.net)
However, Wilson has failed to make an impact at Dean's Court and thus has only made sporadic appearances in the EFL Cup for Bournemouth. (throughitalltogether.sbnation.com)
She does still occasionally wrestle, however, and makes sporadic appearances in various indy promotions such as UWF. (metacritic.com)