provocation

US /ˌprɑː.vəˈkeɪ.ʃən/
UK /ˌprɑː.vəˈkeɪ.ʃən/
"provocation" picture
1.

action or speech that makes someone annoyed or angry, especially deliberately

:
He reacted violently to the slightest provocation.
The police were trained to handle situations without provocation.
2.

something that causes a reaction or response

:
The new policy was a provocation for widespread protests.
His silence was a deliberate provocation.