unhip
🇺🇸
/ˌʌnˈhɪp/
🇬🇧
/ˌʌnˈhɪp/
not fashionable or aware of what is popular
My grandfather is unhip; he doesn't know about the latest music trends.
我祖父不潮流;他對最新的音樂趨勢一無所知。