Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb drop_behind
1 sense of drop behind
Sense 1
drag, trail, get behind, hang back, drop behind, drop back -- (to lag or linger behind; "But in so many other areas we still are dragging")
=> lag, dawdle, fall back, fall behind -- (hang (back) or fall (behind) in movement, progress, development, etc.)