noun, noun or participle which takes 'suru', intransitive verb
Rare, literary word for a delay or standstill, often in formal or written contexts. Can be used as a noun or with する to mean 'to be delayed' or 'to stagnate'.
交渉は凝滞し、進展が見られなかった。
The negotiations stalled, and no progress was seen.
The kanji 凝 means 'congeal' or 'freeze', and 滞 means 'stagnate'. The compound suggests a state of being stuck or delayed. The exact historical derivation is uncertain; it is a rare Sino-Japanese word.