An extremist or radical.

(idiomatic) Used to express unconcern.

For the period of an entire night.

For the period of an entire day, or at least during all the daytime of a day.

plural of all-rounder

(idiomatic) At the same time as, usually over an extended period.

even less

(typography) Text or a font in which all letters are capital letters.

(set phrase) Alternative form of all of a sudden

(chiefly UK, Ireland) Someone who obnoxiously claims to be knowledgeable on a subject.