Adjective
Resembling or characteristic of mustard.
Condimented with mustard.
Synonym: mustarded
The mustardy yellow seating would brighten up any lunchtime (and it was a very wet Wednesday the day we ventured out of Norwich), and the cafe soon filled up with the ladies who lunch crowd – and gents who lunch, to be fair. Source: Internet
The green is especially intriguing, picante enough to feel in your nose, with a taste approaching mustardy. Source: Internet