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 (ĭl′ə-tĭv, ĭ-lā′-)
1. Of, relating to, or of the nature of an illation.
2. Expressing or preceding an inference. Used of a word.
3. Grammar Of, relating to, or being a grammatical case indicating motion toward or into in some languages, as in Finnish Helsinkiin, "to Helsinki."
1. A word or phrase, such as hence or for that reason, that expresses an inference.
2. See illation.
3. Grammar
a. The illative case.
b. A word or form in the illative case.

il′la·tive·ly adv.


1. (Logic) of or relating to illation; inferential
2. (Grammar) grammar denoting a word or morpheme used to signal inference, for example so or therefore
3. (Linguistics) (in the grammar of Finnish and other languages) denoting a case of nouns expressing a relation of motion or direction, usually translated by the English prepositions into or towards. Compare elative1
(Grammar) grammar
a. the illative case
b. an illative word or speech element
[C16: from Late Latin illātīvus inferring, concluding]
ilˈlatively adv


(ˈɪl ə tɪv, ɪˈleɪ tɪv)

of or expressing illation; inferential: an illative word such as “therefore.”
[1585–95; < Late Latin]
il′la•tive•ly, adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.illative - relating to or having the nature of illation or inference; "the illative faculty of the mind"
2.illative - resembling or dependent on or arrived at by inference; "an illative conclusion"; "inferential reasoning"
deductive - involving inferences from general principles
3.illative - expressing or preceding an inference; "`therefore' is an illative word"
grammar - the branch of linguistics that deals with syntax and morphology (and sometimes also deals with semantics)
deductive - involving inferences from general principles


A position arrived at by reasoning from premises or general principles:
References in periodicals archive ?
However, there exist similar approximative forms, while 'right' and 'left' also have illatives.
The former has been attested in some Udmurt dialects at least since Jemeljanov's grammar ([TEXT NOT REPRODUCIBLE IN ASCII] 1927: 127), where an approximate-illative case in -ne is listed as a variant of the illative for the Glazov district Udmurt variety.
personal locative, in her description of the noun declension paradigms; in the appendix to her book, however, one can also find examples of nouns with the suffix -ne (in Tepljasina's terms, one should have labeled this case as personal illative).
The least correct forms were to be found in the Russians' translatives and in the Estonians' illatives. The results of the Estonians varied most in illative, while in the Russians' answers, the greatest variation was in nominative and translative.
As a class, second declension nouns lack fusional short illatives and stem partitives (though individual items may retain old short illatives, as in the case of MAA 'land', which preserves the short illative maha).
In addition, the paradigms of these nominals do not exhibit gradation, and never contain short illatives, stem partitives or short i-plural forms.