Relating to psychological compulsion or the irresistible urge to act or think in certain ways; used in psychiatry.
From Greek ananke (necessity, constraint, fate) + -astic (relating to, characteristic of); psychological term.
Anankastic personalities are people whose brains feel like they must do things perfectly—it's fate and neurology locked in struggle, which is why we call it 'ananke'!
Complete word intelligence in one call. Free tier — 50 lookups/day.