hippie

noun, informal, (esp. in the 1960s) a young person who rejected traditional societal values, advocated free love, peace etc., and adopted an unconventional appearance, typically with long hair, jeans, beads, etc. 2. a person resembling a hippie in dress, beliefs, etc. (COD)

“My sister was a real hippie.”

“His older brother, Tom, was a hippie and played guitar, and all the girls loved him.”