adj ·Rare ·Advanced level

Definitions

Adjective

1. 1
   Following the formal operational stage (the last of Jean Piaget's four stages of human cognitive development), and involving more complex forms of thinking such as self-reference, pragmatism, and acceptance of paradoxes. not-comparable

Etymology

From post- + formal.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.