unknown quantity
A person or thing whose nature or value is a mystery.
Whatever he had learned of himself was here of no avail. He was an unknown quantity.
unknown
/ʌn(ˈn)əʊn/
noun 3adj 1
Collocations
16(adj.)
VERBS
be
remain
Many talented artists remain unknown throughout their entire careers.
ADV
absolutely, completely, entirely, quite, totally, utterly
The new software features remained totally unknown to most employees until the training session.
almost, practically, virtually
The small village remained virtually unknown until a famous movie was filmed there.
largely
comparatively, relatively
The author remained relatively unknown until her novel won the international prize.
as yet, currently, still
hitherto, previously
The new technology brought levels of convenience that were hitherto unknown to most families.
apparently
otherwise
The small town became famous after the movie was filmed there, though it remained otherwise unknown to most people.
PREP
to
The Internet was completely unknown to my grandparents when they were young.
(noun.) place/thing that you know nothing about
ADJ
great
The main character's true identity remains a great unknown throughout the entire mystery novel.
PREP
into the ~
When she moved to a new country alone, she felt like she was stepping into the unknown.
PHRASES
fear of the unknown
(noun.) sb who is not well known
ADJ
complete
The new director was a complete unknown when she started working at the company.
virtual
The director hired mostly virtual unknowns for the indie film, which surprised the studio.
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