subfluent

adj — 2 senses

adj

Flowing beneath.

It was through the crown of this construction [a bridge] that one day Watt, treading more heavily than was his wont, or picking his steps with less than his usual care, drove his foot, and part of his leg. And he would certainly have fallen, and perhaps been carried away by the subfluent flood, had I not been at hand to bear him up.1953, Samuel Beckett, Watt, [Paris]: Olympia Press, →OCLC:

adj

Etymology From sub- + fluent.

Below the level of fluency in a language.

The two basic types of aphasia are subfluent and fluent.2012, William J. Weiner, Christopher G. Goetz, Robert K. Shin, Neurology for the Non-Neurologist, page 540:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.