We found one dictionary that defines the word challenge study:

Miscellaneous (1 matching dictionary)

1. Glossary of Ethical Terms (No longer online)

▸ Words similar to challenge study ▸ Usage examples for challenge study ▸ Idioms related to challenge study ▸ Wikipedia articles (New!) ▸ Words that often appear near challenge study ▸ Rhymes of challenge study ▸ Invented words related to challenge study