Fall behind
Fall behind verb - Hang (back) or fall (behind) in movement, progress, development, etc..
Fail and fall behind are semantically related. In some cases you can use "Fail" instead a verb "Fall behind".
Fail
Fail verb - To stop functioning.
Fall behind and fail are semantically related. Sometimes you can use "Fall behind" instead a verb "Fail".
Cite this Source
Fail and Fall behind. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/fall_behind/fail
Fall behind & Fail. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/fall_behind/fail>.
Fail or Fall behind. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/fall_behind/fail.
Google Ngram Viewer shows how "fall behind" and "fail" have occurred on timeline