Challenge
Problem
Synonyms Problem, test, trouble, obstacle, provocation, difficult task, trial, bother, dare, and summons.
Confrontation with
Synonyms Confrontation with, stand against, opposition, questioning of, ultimatum, dispute with, test of, disagreement with, and defiance.
Dispute
Example Sentences
This hike is a challenge today.
He faced every challenge bravely.
The math problem was a challenge.
Completing the project was a challenge.
She loves a good challenge.