quintessential /ˌkwɪntɪˈsɛnʃəl/adjective 1noun 1forms 3 adjective1 •Of the nature of a quintessence (in all senses); being or relating to the ultimate essence of something.Twin Tracks is the old-fashioned autobiography of a quintessential Englishman, evocative of an age when you took halibut oil for rickets and sportsmen were amateurs who trained in their lunch breaks. — 2014 noun1 •The fundamental essence of something.A final aspect of the focus argument concerns the potential for integration to highlight the quintessentials of each subject. — 2013 formsquintessentials · more quintessential · most quintessential