challengingness

challengingness englanniksi

1. Quality or degree of being challenging.

2. {{quote-journal|en|date=August 27, 2015|author=|title=When Challenging Art Gets Liked: Evidences for a Dual Preference Formation Process for Fluent and Non-Fluent Portraits|journal=PLOS ONE|url=http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0131796|doi=10.1371/journal.pone.0131796|volume=|issue=|pages=