Translation guide
The English word 'groovy' is a slang term from the 1960s–70s meaning cool, excellent, or fashionable. In Japanese, there is no direct equivalent, but you can express similar ideas using modern slang for 'cool' or retro terms that evoke a Showa-era vibe.
Expressing that something is cool, awesome, or stylish in a casual, contemporary way.
The most common and versatile word for 'cool' or 'stylish'. Works for people, things, music, etc.
That jacket is groovy.
Retro slang from the Showa era, directly evokes a 'groovy' feel. Often used in a playful, nostalgic way.
Literally 'numbing', but in slang it means 'thrilling' or 'mind-blowing'. Can be used for something extremely cool or exciting, often with a retro feel.
Describing music that has a compelling, danceable rhythm or a 'groove'.
Means 'has a good groove' or 'makes you want to move'. Commonly used for music with a strong, enjoyable rhythm.
This song is really groovy.
Direct loanword from English 'groovy'. Used mainly in music contexts to describe a funky, rhythmic feel.
That's a groovy bassline.
Literally 'can ride the rhythm', meaning the music makes you want to dance or tap along.
It's a groovy song.
Describing clothing, accessories, or style that is fashionable in a retro or vintage way.
There is no direct Japanese word for 'groovy' that covers all its nuances. Using グルーヴィー is understood but sounds like a loanword and is limited to music. For general 'cool', use かっこいい. For retro flair, use イカす or レトロ.
イカす is deliberately old-fashioned slang, evoking the Showa era (1960s–80s). かっこいい is the standard modern word for 'cool'. Use イカす when you want a nostalgic, playful tone.
That's a groovy tune.
あのギターソロ、シビれるね。
That guitar solo is groovy.