challenging

Verb

challenging

1. present participle of challenge

Adjective

challenging (comparative more challenging, superlative most challenging)

1. Difficult, hard to do.

Noun

challenging (plural challengings)

1. The act of making a challenge.
   • Estcourt Rowland Metzner, The conflict of tax laws (page 151)

     There are always sincere challengings of the findings, always the objections (sincere in another sense) of those whose interests seem threatened.

See also

• challenge