Aggressively supporting of a political or social cause; adamant, combative.
Fighting or disposed to fight; belligerent, warlike.
Specifically, someone who supports the Trotskyist political view expressed in the newspaper Militant, or who engages in aggressive left-wing politics.
An entrenched or aggressive adherent to a particular cause, now especially a member of a particular ideological faction.
Making threats, making statements about a willingness to cause harm.
Presenting a threat, posing a likely risk of harm.
An act of threatening; a threat.