The indefinite pronouns

The indefinite pronouns refer to a non-specific person, thing or fact, without further reference to their gender or number.

Many indefinite pronouns are used as articles or substitute a noun.

The following are indefinite pronouns :

ein- / kein- / welch-

man

jemand / niemand

etwas / nichts

jed- / jedermann

all-

einig- / mehrer-

manch-

beide

irgendein- / irgendwelch-