from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Of, relating to, or of the nature of an illation.
  • adjective Expressing or preceding an inference. Used of a word.
  • adjective Grammar Of, relating to, or being a grammatical case indicating motion toward or into in some languages, as in Finnish Helsinkiin, “to Helsinki.”
  • noun A word or phrase, such as hence or for that reason, that expresses an inference.
  • noun The illative case.
  • noun A word or form in the illative case.

from The Century Dictionary.

  • In grammar, noting the case expressing motion into. See introessive.
  • noun In grammar, the illative case.
  • Relating to illation; drawing or able to draw inferences.
  • Due to illation; inferential; inferred.
  • Denoting an inference: as, an illative word or particle, as then and therefore.
  • noun That which denotes illation or inference.
  • noun An illative particle.

from the GNU version of the Collaborative International Dictionary of English.

  • noun An illative particle, as for, because.
  • adjective Relating to, dependent on, or denoting, illation; inferential; conclusive
  • adjective (Logic) a converse or reverse statement of a proposition which in that form must be true because the original proposition is true.
  • adjective (Metaph.) the faculty of the mind by which it apprehends the conditions and determines upon the correctness of inferences.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective of, or relating to an illation
  • adjective grammar of, or relating to the grammatical case that in some languages indicates motion towards or into something
  • noun grammar a word or phrase that expresses an inference (such as therefore)
  • noun an illation
  • noun grammar the illative case, or a word in that case

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective relating to or having the nature of illation or inference
  • adjective resembling or dependent on or arrived at by inference
  • adjective expressing or preceding an inference


from Wiktionary, Creative Commons Attribution/Share-Alike License

From Late Latin illātīvus ("illative"), from Latin illātus, perfect passive participle of inferō ("carry or bring into somewhere; bury; conclude"), from in + ferō ("bear, carry; suffer").


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  • From that basic meaning, a sense of illative (ie. going into something) rather than inessive (ie. being in something) may sometimes surface secondarily where verbs of motion are used, such as in my above example with far.

    Ashes to ashes 2009

  • According to Johnson, traditional logic has focused too much on the illative core, though a rational arguer must pay as much attention to its dialectical tier.

    Informal Logic Groarke, Leo 2007

  • That this verse contains a conclusion, is evident from the illative particle

    The Works of James Arminius, Vol. 2 1560-1609 1956

  • Chesterton was really saying by a comparison with the "illative sense" of Cardinal Newman.

    Gilbert Keith Chesterton Maisie Ward 1932

  • A man can reason well about familiar matter; but, unless he has explicitly examined the illative process, he will hesitate and err when dealing with new subject-matter.

    The Catholic Encyclopedia, Volume 12: Philip II-Reuss 1840-1916 1913

  • The common relations between sentences indicated by conjunctions are coördinative, subordinative, adversative, concessive, and illative.

    English: Composition and Literature 1899

  • I answer, No; for there is a great deal of difference between a mere illative necessity, which consists only in the logical consequence of one thing upon another, and between a causal necessity, which efficiently and antecedently determines and puts the faculty upon working.

    Sermons Preached Upon Several Occasions. Vol. V. 1634-1716 1823

  • How ever, it is certain, that, by the former kind of merely illative necessity, the thing decreed will assuredly have its event.

    Sermons Preached Upon Several Occasions. Vol. V. 1634-1716 1823

  • If in this verse is not signified Christ's taking on him our nature, how comes it to pass, that, in the next verse, which has an illative dependence upon this, the seed of Abraham are called his brethren? for his being their deliverer only would not make them his brethren; but his taking of our nature properly does.

    Sermons Preached Upon Several Occasions. Vol. V. 1634-1716 1823

  • For the proving of which, I shall premise this one note, (which indeed is clear of itself from the very illative particle therefore,) that this and the following verse are so joined together, as to make up one argument; of which argument this verse is the antecedent, and the other the consequent, or inference drawn from it.

    Sermons Preached Upon Several Occasions. Vol. V. 1634-1716 1823


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