ultra

Extreme; far beyond the norm; fanatical; uncompromising.

an ultra reformer; ultra measures

A political extremist, in particular

Five militants were nabbed while four ultras of Harkat-ul-Jehad-e-Islami (HuJI) gave themselves up.

A political extremist, in particular:

A political extremist, in particular:

A political extremist, in particular:

Her soirées were among the most agreeable at Paris—she united all the rank and talent to be found in the ultra party, for she professed to be quite a female Mæcenas; […]

"At any rate that is what he explained to me," I said hastily while the lawyer rubbed his long ultra's nose and sighed.

An especially devoted football fan, typically organized and participating in choreographies (including pyrotechnics), often of outwardly intimidating demeanour, but distinguished from a violent hooligan (although overlap between both subcul

A similar view is expressed by a Turin supporter in Segre's study, but in this case it is more specifically addressed to how powerful teams, such as Juventus, get preferential treatment in reports on the negative aspects of the ultras world.

If a member of an official football club can be said to be a citizen of the football world, an ultra has to be considered as a militant.