Decline and Pop up

Decline

Decline verb - To show unwillingness to accept, do, engage in, or agree to.

Pop up is an antonym for decline.

Pop up

Pop up verb - Appear suddenly or unexpectedly.

Decline is an antonym for pop up in evolve topic.
Cite this Source
Pop up and Decline. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/decline/pop_up
Decline & Pop up. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/decline/pop_up>.
Pop up or Decline. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/decline/pop_up.
Google Ngram Viewer shows how "decline" and "pop up" have occurred on timeline