Synonyms of 'challenge'
1 dareDictionary, provocation, summons to contest
I like a challenge, and they don't come much bigger than this.
2 testDictionary, trial, opposition
In December, she saw off the first challenge to her leadership.
1 disputeDictionary, question, tackle
The move was immediately challenged by the opposition.
2 dareDictionary, invite, provoke
He left a note at the crime scene, challenging detectives to catch him.
3 testDictionary, try, tax
a task that would challenge his courage
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If someone accosts another person, especially a stranger, they stop them or go up to them and speak to them in a way that seems rude or threatening.
I told them that a man had accosted me in the street.
If you confront someone, you stand or sit in front of them, especially when you are going to fight, argue, or compete with them.
She pushed her way through the mob and confronted him face to face.
Thesaurus for challenge from the Collins English Thesaurus
A challenge is something new and difficult which requires great effort and determination .