sublinguisticadj.

1907 Jrnl. Royal Anthropol. Inst. 37 312 It may be said to form with the Clallam and the Lummi of Puget Sound, a distinct sub-linguistic group.

1976 Amer. Speech 1974 49 266 The changes involved in these expressions are not sublinguistic. Instead, they are part of the natural evolution of standard English.

1991 B. Rigby tr. P. Yonnet in Pop. Culture in Mod. France i. 11 It does not even constitute a subculture (like strip cartoons); it does not produce enough original sublinguistic phenomena.

2002 J. Braaten in N. Scheman & P. O'Connor Feminist Interpr. L. Wittgenstein viii. 181 Some language games played by some sublinguistic communities are novel to other sublinguistic communities.

1913 Mind 22 458 Thought is not necessarily dependent on language. It may be sublinguistic, as in experiences of search..or of trying to recall a face.

1933 L. Bloomfield Lang. ix. 148 These shortened forms occur in various languages; their relation to normal speech is obscure, but evidently they represent a kind of sub-linguistic communication, in which the ordinary meaning of the forms plays no part.

1977 ‘A. Burgess’ Beard's Rom. Women v. 108 I'm American, so there won't be any language problem. Not that there'll be any need for language. Sublinguistic activity, let's call it.

1990 N.Y. Times Mag. 19 Aug. 38/2 His ability to humanize, often with sublinguistic oohs and grunts, all the statistics and high-tech gadgetry that now characterize telecasts.