hedonistic UK /ˈhɛdənɪstɪk/US /hidəˈnɪstɪk/ adjective1 •Devoted to pleasure.He refers to the danger of leading our lives on a hedonistic treadmill, seeking more accomplishments and trying to get more things and more money, leading eventually to ever increasing expectations. — 2003 formsmore hedonistic · most hedonistic