alt-rock

alt.rock

noun

a genre of rock music regarded by its practitioners and fans as being outside the mainstream

Word Origin for alt-rock

C20: from alt (ernative) + rock

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012