Antonym

• POSSIBLEABLE TO BE DONE OR ABLE TO HAPPEN, OR ABLE TO BE THE CASE. 

Hypernym

• NECESSITYCERTAIN AND CAUSING ONE NOT to be ABLE to IMAGINE it being NOT TRUE.
  • CERTAINTRUE AND NOT being DOUBTED.
    • TRUEEXIST CONFORMing to SPEAK(what is claimed). (BE AS SAID(asserted))[[NB: the subject of this syntactic predicate is the situation identified in the "sentence" of which this syntactic predicate is predicated. "God made Heaven and Earth" is TRUE iff the situation identified in this sentence (the creation of Heaven and Earth by God) EXISTS(i.e. occurred).]
      • EXISTBE-IN the UNIVERSE of SPACE AND TIME....

• Handbook of Greek Synonymes, from the French of M. Alex. Pillon, Librarian of the Bibliothèque Royale , at Paris, and one of the editors of the new edition of Plaché's Dictionnaire Grec-Français, edited, with notes, by the Rev. Thomas Kerchever Arnold, M.A. Rector of Lyndon, and late fellow of Trinity College, Cambridge ( PILLON 1850) p. no.85

• Bibliographisches Handbuch zur Sprachinhaltsforschung. Teil II. Systematischer Teil. B. Ordnung nach Sinnbezirken (mit einem alphabetischen Begriffsschluessel): Der Mensch und seine Welt im Spiegel der Sprachforschung ( FRANKE 1989) p. 59B