apocryphal, baseless, counterfeit, unassuming, spurious, unclear, disputed, common, unconfident, fallible, fictitious, specified, inexact, unreliable, fabulous, false, unlikely, diffident, doubted, hypothetical, obscure, indefinite, indistinct, exploded, known, vague, avoidable, indecisive, evadable, unpredictable, disputable, preventable, named, general, faltering, uncertain, refutable, hesitant, wavering, Contradictable, ordinary, undecided, usual, open-ended, adjustable, improbable, dishonest, unsure, vacillating, imprecise, unauthorized, unimportant, unreal, controversial, theoretical, invalid, academic, dubious, doubting, doubtful, careless, speculative, questionable, unspecified, answerable, unfixed.
"The Disowned, Complete" by Edward Bulwer-Lytton
"Revenge!" by by Robert Barr
"The Mating of Lydia" by Mrs. Humphry Ward
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1 known but not named <a certain person told me that today is your birthday>
Synonyms anonymous, given, one, some, unidentified, unnamed, unspecified ...
Fuzzy Sets and Systems 45 (1992) 335-340 335 North-Holland On a certain
formalization of antonyms logic Ya. Ya. Golota Leningrad Polytechnical Institute,
These english synonyms and antonyms for words used in writing has been
arranged by categories. For each word (certain, clear, obvious, sure,
Synonyms and antonyms for certain. 1. certain (adj.) definite but not specified or
... certain to occur; destined or inevitable. Synonyms: sure,; fated,; doomed ...