Firm up and Open

Opposite meaning terms

Firm up verb - To become physically firm or solid.

Show all Definitions

Open is an antonym for firm up in make resistant to change topic.

Open verb - To change from a closed to an open position.

Show all Definitions

Firm up is an antonym for open.

Nearby Words: opening, openness, opened, opener

Cite this Source

Open and Firm up. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/firm_up/open

Firm up & Open. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/firm_up/open>.

Open or Firm up. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/firm_up/open.

Google Ngram Viewer shows how "firm up" and "open" have occurred on timeline