Unknown

Meaning

not known or identified; unfamiliar

not known or familiar

Example Sentences

The author of this letter remains unknown.

The origin of the disease remains unknown.

Synonyms

unfamiliar, unidentified, mysterious, nameless, undiscovered, hidden, secret

Entry 1

unfamiliar, unidentified, mysterious, nameless

Entry 2

unfamiliar, undiscovered, hidden, secret

Antonyms

known, familiar, identified, recognized, discovered

Entry 1

known, familiar, identified, recognized

Entry 2

known, familiar, discovered

Collocations

unknown person, unknown origin, unknown cause, unknown source, unknown fact

Entry 1

unknown person, unknown origin, unknown cause

Entry 2

unknown source, unknown origin, unknown fact