Dendril
    Dendril Roots
      unacceptable
      noun
      Something that is not acceptable.
      adjective
      Unsatisfactory; not acceptable.
      (linguistics) Not conforming to accepted usage.
      Roots
      unun- · Old English · not, reversecapio-cept · Latin · take, seize
      Synonyms for unacceptable
      exceptionableadjintolerableadjimpossibleadjuntenableadjindefensibleadjinappropriateadjunsuitableadjunsatisfactoryadjinadmissibleadjobjectionableadj
      Words related to unacceptable
      unacceptedadjunacceptablyadvinexcusableadjinadmissiblyadvacceptableadjunacceptabilitynunjustifiableadjunsupportableadjinsupportableadjimpermissibleadjunbecomingadjunforgivableadjinsufferableadjunbearableadjunbefittingadjunconscionableadjunpardonableadjunreasonableadjdisgracefuladjreprehensibleadjoutrageousadjintolerablyadvinsupportablyadvindigndeplorableadjunendurableadjunfittingadjindefensiblyadvappallingadjunthinkableadj

      Synonyms & related words for unacceptable

      Find synonyms, related words, and the definition of unacceptable — including exceptionable, intolerable, impossible, untenable, indefensible, inappropriate. Dendril is a free visual thesaurus that shows them on an interactive map where stronger matches sit closer to the center — no signup, no ads.

      Words related to unacceptable

      Explore words related to unacceptable — words associated with it, words that go with it, and its nearest matches in meaning. Related words include unaccepted, unacceptably, inexcusable, inadmissibly, acceptable, unacceptability, unjustifiable, unsupportable. Click any word to make it the center of the map and keep exploring the web of connections.

      Synonyms for unacceptable

      Common synonyms for unacceptable include exceptionable, intolerable, impossible, untenable, indefensible, inappropriate, unsuitable, unsatisfactory — words that share a close meaning. Hover or tap any word on the map for its definition and part of speech.

      Where does unacceptable come from?

      The word unacceptable breaks down into 2 roots of Old English and Latin origin: un-, from Old English un (“not, reverse”); and -cept, from Latin capio (“take, seize”). Explore each root to see other English words built from the same source.

      © 2026 Dendril · Credits Explore roots