Not proper
Unacceptable and not proper are semantically related. In some cases you can use "Unacceptable" instead an adjective phrase "Not proper".
Unacceptable
Unacceptable adjective - Falling short of a standard.
Not proper and unacceptable are semantically related. Sometimes you can use "Not proper" instead an adjective "Unacceptable".
Nearby Word: unaccepted
Mutual synonyms
Related pairs
- disagreeable and not proper
- disagreeable and unacceptable
- inapt and not proper
- inapt and unacceptable
- improper and not proper
- improper and unacceptable
- tasteless and not proper
- tasteless and unacceptable
- unfit and not proper
- unfit and unacceptable
- inappropriate and not proper
- inappropriate and unacceptable
- unsuitable and not proper
- unsuitable and unacceptable
Cite this Source
Unacceptable and Not proper. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/not_proper/unacceptable
Not proper & Unacceptable. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/not_proper/unacceptable>.
Unacceptable or Not proper. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/not_proper/unacceptable.
Google Ngram Viewer shows how "not proper" and "unacceptable" have occurred on timeline