Drop off
Drop off verb - To grow less in scope or intensity especially gradually.
Fall behind is a synonym for drop off. In some cases you can use "Fall behind" instead a verb "Drop off".
Fall behind
Fall behind verb - Hang (back) or fall (behind) in movement, progress, development, etc..
Cite this Source
Fall behind and Drop off. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/drop_off/fall_behind
Drop off & Fall behind. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/drop_off/fall_behind>.
Fall behind or Drop off. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/drop_off/fall_behind.
Google Ngram Viewer shows how "drop off" and "fall behind" have occurred on timeline