Of or pertaining to gibberish, expressed in gibberish; unintelligible, unmeaning. Obsolete.

Of sound or voice: Not of the nature of articulate speech; not consisting of distinct parts having each a definite meaning; not uttered or…

= inarticulate, adj. 2. Obsolete.

Pompous, pretentious, or high-flown. Formerly also: using unintelligible or extravagant language. Obsolete.

of the nature of jargon or sound without sense.

invented language, meaningless language, nonsensical behaviour; also as adj., nonsensical, meaningless, topsy-turvy.