present participle of challenge

Difficult, hard to do.

The act of making a challenge.

plural of challenging

Able to be challenged or disputed.

(euphemistic) Lacking some physical or mental attribute or skill ; used after adverbs to make politically correct adjectives.

simple past tense and past participle of challenge

One who challenges; especially, one who plays against the current champion of a game or contest in hopes of winning and becoming the new champion.

plural of challenge

Third-person singular simple present indicative form of challenge