improperest
Fetched 2026-10-26 (cache).
Synonyms: improperness, properest
Antonyms: improperness, properest
Related words from Datamuse; suggestions, not definitions.
Adjective
- {{en-superlative of|improper}}
Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.