stagnate, be delayed, overdue, arrears
滞 centers on something that should be moving or progressing but is instead stuck: water that stagnates, a schedule that is delayed, payments that are overdue, or tasks that fall into arrears.
滞 combines 氵 (water) with 带, which likely contributes the sound and the idea of something long and continuous. The compound suggests water that is not flowing freely, hence stagnation.
Water 氵 beside a long belt-like shape 带: imagine a river that has become tangled like a belt, unable to flow, so it stagnates and everything is delayed.
For タイ, picture a tie (ネクタイ) caught in a stagnant pond: tie -> タイ, and the water is stuck.
stay; sojourn
(traffic) congestion; traffic jam; gridlock
stagnation; tie-up; standstill; congestion; delay; accumulation; falling into arrears
falling behind (with a payment); being in arrears; non-payment; default; delinquency
to stagnate; to be delayed; to be left undone
arrears; (being) overdue; delay (e.g. in payment); procrastination
stagnation; hindrance; delay
delay; procrastination
stagnation; standstill; accumulation; pile-up
staying in the air; remaining airborne
stagnation; inactivity
congestion; stagnation; stasis
illegal residence (in a country); illegal stay; illegal overstaying (of a visa)
illegal resident (in a country); illegal alien; illegal overstayer (person who has overstayed their visa)
congestion caused by a traffic accident
traffic congestion; traffic jam; (traffic) deadlock
stationary weather front
plateau (e.g. in weight loss); (period of) stagnation
delay
huge (traffic) congestion; major traffic jam; complete standstill; total gridlock