Synonyms: obstreperous
Definition: boisterously and noisily aggressive
Usage: kept up an obstreperous clamor
Similar words: aggressive
Definition: having or showing determination and energetic pursuit of your ends
Usage: an aggressive businessman; an aggressive basketball player; he was aggressive and imperious; positive in his convictions; aggressive drivers
Synonyms: obstreperous
Definition: noisily and stubbornly defiant
Usage: obstreperous boys
Similar words: defiant, noncompliant
Definition: boldly resisting authority or an opposing force
Usage: brought up to be aggressive and defiant; a defiant attitude