Relating to or characteristic of absolutism; showing a tendency toward absolute or uncompromising beliefs and positions.
From absolutist plus -ic (forming adjectives). This is a relatively modern formation used to describe philosophical or political attitudes of an absolutist nature.
Psychologists use 'absolutistic thinking' to describe a cognitive pattern where people see things as black-and-white with no gray area—it's often linked to anxiety disorders and rigid personality traits!
Complete word intelligence in one call. Free tier — 50 lookups/day.