1960s adjective 1noun 1forms 2 adjective1 •Designating popular culture and major events that occurred in this decade, or anything manufactured in this decade.My father was a classic 1960s hippie who used to smoke marijuana. noun[plural only]1 •The decade beginning in 1960 and ending in 1969.The story of Ms. He and her mother began in the early 1960s, shortly before the Cultural Revolution shook China. — 2014 formsmore 1960s · most 1960s