Anankastic

1991: ‘You’re a classic anal-retentive,’ he says, ‘tirelessly absorbed by minutiae, anankastic in the extreme – it’s lucky you have me to deal with the broad sweep of things, to do the abstract thinking.’ — Will Self, ‘Mono-Cellular’, The Quantity Theory of Insanity

Like many anankastics, he suffers from a disturbance in the capacity to act, which is revealed especially as an impediment to beginning something new and completing something.