形容词

1. 停滞不前的;不发展的;无变化的
If something such as a business or society is stagnant, there is little activity or change.

2. (水)不流动而污浊的
Stagnant water is not flowing, and therefore often smells unpleasant and is dirty.

1. not growing or changing
without force or vitality

Synonym: moribund

2. not circulating or flowing

e.g. dead air
dead water
stagnant water

Synonym: dead(a)