adj, noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A proponent of Karl Popper's philosophy.

Adjective

1. 1
   Of or relating to the philosophy of philosopher Karl R. Popper.

Etymology

From Popper + -ian.

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