challenging

As verbs the difference between challenging and complicated

is that challenging is present participle of lang=en while complicated is past tense of complicate.

As adjectives the difference between challenging and complicated

is that challenging is difficult, hard to do while complicated is difficult or convoluted.

As a noun challenging

is the act of making a challenge.

As a verb challenging

is .

As an adjective challenging

is difficult, hard to do.

As a noun challenging

is the act of making a challenge.

As an adverb testingly is

in a tentative and experimental manner.

As adjectives the difference between challenging and nonchallenging

is that challenging is difficult, hard to do while nonchallenging is not challenging.

As a verb challenging

is .

As a noun challenging

is the act of making a challenge.