Acceptable
Acceptable adjective - Of a level of quality that meets one's needs or standards.
Formal and acceptable are semantically related. In some cases you can use "Formal" instead an adjective "Acceptable".
Formal
Formal adjective - Following or agreeing with established form, custom, or rules.
Acceptable and formal are semantically related. Sometimes you can use "Acceptable" instead an adjective "Formal".
Both words in one sentence
-
The Dresden Files has institutionalized this, in which one of the acceptable forms for a formal duel is a contest of "energy", meaning solely magic.
Source: Wizard Duel - The only acceptable heterosexual sex is a short-term formal arrangement intended for reproduction.
Source: Your Normal Is Our Taboo -
Unlike most examples in Please Select New City Name, the shorter and longer versions are both acceptable, though the longer versions are considered more formal.
Source: Meaningful Rename
Cite this Source
Formal and Acceptable. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/acceptable/formal
Acceptable & Formal. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/acceptable/formal>.
Formal or Acceptable. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/acceptable/formal.
Google Ngram Viewer shows how "acceptable" and "formal" have occurred on timeline