perfect stranger

Totally unfamiliar person

A perfect stranger is someone completely unknown to you—no prior connection, no mutual acquaintances, nothing.

The phrase emphasizes total unfamiliarity: She told her life story to a perfect stranger on the train.

Here *perfect* means complete or absolute, not flawless.

The expression often highlights the oddness of intimacy or trust with someone you've never met.

Related

face in the crowd · boundaries · anonymous · vulnerability · approachability · ephemeral · suspicion · trust · leap of faith · meeting · caution · assumption · chance encounter · fleeting · nameless · impression · introduction · small talk

Opposites
familiarity/relationship

perfect strangerintimate

Closely personal or private

close friend · best friend · soulmate · loved one · lifelong friend

social distance

perfect strangertrusted ally

Reliable supportive companion

insider · one of us · known quantity · regular · neighbor

Family

perfect, stranger, perfection, perfectly, imperfect, imperfection, imperfectly, perfectible, perfected

Familiarity
Top 50,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G