Nonconstat
The Century Dictionary and Cyclopedia
noun.
It does not appear; it is not clear or plain: a phrase used in legal language by way of answer to or comment on a statement or an argument.
the GNU version of the Collaborative International Dictionary of English
noun.
It does not appear; it is not plain or clear; it does not follow.
Wiktionary, Creative Commons Attribution/Share-Alike License
adverb.
It does not appear; it is not plain or clear; it does not
follow
.
suggests
nonconstant