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Unknown vs Doubtful - What's the difference?

unknown | doubtful | Related terms |

Unknown is a related term of doubtful.


As adjectives the difference between unknown and doubtful

is that unknown is not known; unidentified; not well known while doubtful is subject to, or causing doubt.

As a noun unknown

is (algebra) a variable (usually x'', ''y'' or ''z ) whose value is to be found.

unknown

English

Adjective

(-)
  • Not known; unidentified; not well known.
  • *
    • , title=(The Celebrity), chapter=4 , passage=The Celebrity, by arts unknown , induced Mrs. Judge Short and two other ladies to call at Mohair on an afternoon when Mr. Cooke was trying a trotter on the track. The three returned wondering and charmed with Mrs. Cooke; they were sure she had had no hand in the furnishing of that atrocious house.}}

    Synonyms

    * anonymous * unfamiliar * uncharted * undiscovered * unexplored * unidentified * unnamed * unrecognized * unrevealed * unascertained * obscure * unsung

    Noun

    (en noun)
  • (algebra) A variable (usually x'', ''y'' or ''z ) whose value is to be found.
  • Any fact or place about which nothing is known (as in the phrase "into the unknown").
  • A person of no identity; a nonentity
  • * 1965 , (Bob Dylan), (Like a Rolling Stone)
    • How does it feel
    To be on your own
    With no direction home
    Like a complete unknown
    Like a rolling stone?

    doubtful

    English

    Alternative forms

    * doubtfull (archaic)

    Adjective

    (en adjective)
  • Subject to, or causing doubt
  • or showing doubt, sceptical
  • Undecided or of uncertain outcome
  • (obsolete) Fearsome, dreadful.
  • *, Bk.XIV, Ch.vii:
  • *:‘With whom,’ seyde Sir Percivale, ‘shall I fyght?’ ‘With the moste douteful champion of the worlde.’
  • Improbable or unlikely
  • Suspicious, or of dubious character
  • Unclear or unreliable
  • *{{quote-book, year=1922, author=E.R. Eddison, title=The Worm Ouroboros
    • , passage=The pupils of her great eyes were large in the doubtful lamplight, swallowing their green fires in deep pools of mystery and darkness.}}