Wikidata:Requests for comment/What is the general position on adjectival items?

An editor has requested the community to provide input on "What is the general position on adjectival items?" via the Requests for comment (RFC) process. This is the discussion page regarding the issue.

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Should separate items exist with adjective labels, when another item exists with the noun (or noun phrase) form as its label? I get the impression that noun forms are preferred for labels and adjectives should only be aliases at most, but I want to know if there is a firm community position on this. For example:

We have equality (Q842346) but not "equal"
We have symmetry (Q29892597) and symmetric relation (Q621461), but not "symmetrical"
We have truth (Q7949) but not "true"
We have existence (Q468777) but not "existent"
We have creativity (Q170658) and creative work (Q17537576), but not "creative"
Etc. ad infinitum

(Note: for many of these, there are items with the adjective form as their label, but never with the sense meant above.)

And then, 2) what about an adjective and a noun from different roots, but whose roots are (near-)synonyms? E.g. excess (Q21262209) and excess (Q29907014)? (I have been told these particular terms are not synonymous enough to merge, but I disagree.)

Swpb (talk) 19:30, 10 May 2019 (UTC)[reply]

In the Q-namespace we have items about concepts and there should be generally no items about nouns or adjectives in that namespace. ChristianKl ❪✉❫ 02:50, 11 May 2019 (UTC)[reply]

@ChristianKl: Yes, of course, the items are never about the words, but the concepts to which they refer. Nonetheless, the labels must have a grammatical form, and that's what the question is about. I've edited it to clarify that. Swpb (talk) 12:57, 11 May 2019 (UTC)[reply]

:@Swpb: I think the talk's page of Wikidata:Label is more appropriate for that discussion. But for the ground of the question, it seems to me that the topic is not more relevant since we have lexemes. Keep only the singular noun for label and avoid all other forms (adjective, plural, neutral,...). Instead of writing adjective as alias better use the structured system of lexeme to be able to recovery that form. As alias you have no way to identify noun from adjective. Snipre (talk) 11:58, 27 June 2019 (UTC)[reply]

The following property proposal is relevant to this discussion: Wikidata:Property proposal/adjective of --Denny (talk) 01:17, 6 October 2019 (UTC)[reply]