Be in advance of their time - Idioms by The Free Dictionary
be in advance of (one's) time (redirected from be in advance of their time)
be in advance of (one's) time
To do something that is more innovative than can be properly appreciated in one's lifetime. He was really in advance of his time with this music—critics in the 1970s just couldn't see it.
be ahead of/before/in advance of your ˈtime have ideas or invent things before people are ready to accept them: He was sure that it was possible to fly to the moon, but he was ahead of his time and people laughed at him. ♢ She was a feminist before her time. OPPOSITE: be behind the times