I. ̷ ̷ˈ ̷ ̷tə̇və̇st, -tēv- noun
( -s )
Etymology: instinctive + -ist
: one that views society as a manifestation of various instinctive drives ; broadly : one that views human behavior and social adaptation as the resultant of the interplay of various instinctive drives (as for survival) with environmental factors (as group relations)
II. (ˈ) ̷ ̷| ̷ ̷ ̷ ̷ ̷ ̷ adjective
or in·stinc·ti·vistic (|) ̷ ̷| ̷ ̷ ̷ ̷|vistik, -tēk
: based on the predominance of instinct : of or relating to instinctivists
instinctivist theories