nondefinition means that which is not a definition, or fails to define properly. Lexicurio rates it Rare gem — a strength score of 82 out of 100.
Etymology
From non- + definition.
noun
- That which is not a definition, or fails to define properly.“The feminists were so assertive as to conceive, announce, and establish a new definition of woman and, somewhat incidentally, of man. The new definitions were in a sense nondefinitions — no more than possible identities — so as to help create the new gender-neutral society.”