Noun
post-grunge (uncountable)
(music) A genre of grunge music influenced by pop music and heavy metal.
We were perceived as a post-grunge band. Daniel Johns
By the mid-1990s, as elements of the movement began to attract mainstream interest, particularly grunge and then Britpop, post-grunge and pop-punk, the term alternative began to lose its meaning. Source: Internet
Post-grunge main Foo Fighters performing an acoustic show in 2007 The term post-grunge was coined for the generation of bands that followed the emergence into the mainstream and subsequent hiatus of the Seattle grunge bands. Source: Internet
The album peaked at number 53 on the Billboard 200. citation Alternative metal band Chevelle's 2016 album Northern Corridor demonstrates a much heavier sound than their previous albums, more resembling nu metal than their post-grunge roots. Source: Internet
The term post-grunge originally was meant to be pejorative, suggesting that they were simply musically derivative, or a cynical response to an "authentic" rock movement. Source: Internet