single individual

Lone human being

A single individual is one person, considered alone rather than as part of a group.

The phrase is technically redundant—individual already implies one—but appears in legal, administrative, and formal contexts where precision matters: No single individual can be held responsible for this failure.

It emphasizes the solitary nature of the person in question.

Related

solo act · unmarried · bachelor · alone · going it alone · one · unique · one of a kind · isolated · unattached · free agent · independent · person · unit · loner · sole · only · separate

Opposites
quantity/numerosity

single individualgroup

Assembled collection of things

crowd · multitude · collective · mass · throng

social organization

single individualcommunity

Collective of connected people

collective · society · organization · team · institution

identity/distinctiveness

single individualfaceless crowd

the herd · the mob · demographic · category

Family

single, individual, singly, singles, singled, singling, singleton, singular, singularity

Familiarity
Top 500,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G