involontari
Involontari is the Italian plural form of the adjective involontario, and in standard Italian the term is rarely used to denote people who perform work without pay. The common word for such people is volontari (volunteers). When used as an adjective, involontario refers to something done without free will or by accident, as in atti involontari (unintentional acts). The noun form involontario can refer to an involuntary person, but this usage is uncommon and often sounds awkward in contemporary Italian.
Etymology and meaning: involontario derives from the Latin involuntarius, with the root volunt- coming from voluntas
Usage context: Involontari may appear in historical or literary texts to describe acts done without voluntary
See also: volontari, volontariato, volontariato civico, protezione civile, croce rossa italiana.