groovy
adj. C1 Advanced US //ˈɡɹuvi// UK //ɡɹˈuːvi// groovy
adj. fashionable, exciting, or having a great musical rhythm. People used this a lot in the 1960s and 70s to say something was cool.
adj. fashionable, attractive, or excellent; characterized by a strong musical rhythm. Informal and dated in register, primarily associated with the counterculture of the 1960s.
That new record has a really groovy beat.
The vintage shop was filled with groovy furniture and bright posters from the seventies.
From groove + -y.
From the phrase in the groove, originally in reference to the grooves of an early phonograph record.
Usage
Typically used as a gradable adjective; often appears in informal or retro contexts.