Is “Unknown” a Scrabble word?
Yes
UNKNOWN
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Unknown
/ʌnˈnəʊn/
verb
1.To undo the process of knowing, to lose knowledge of something.
noun
1.A variable (usually x, y or z) whose value is to be found.
2.Any thing, place, or situation about which nothing is known; an unknown fact or piece of information.
3.A person of no identity; a nonentity
adjective
1.(sometimes postpositive) Not known; unidentified; not well known.
Synonyms: anonymous, obscure, unascertained, uncharted, undiscovered, unexplored