noun

1. A swampy, soggy area of ground.

   “That quagmire regularly ‘swallows’ caught-up hikers' boots”

2. A perilous, mixed up and troubled situation; a hopeless tangle; a predicament.

   “The paperwork got lost in a quagmire of bureaucracy.”

Synonyms: marsh, marshland, mire, quag

verb

1. To embroil (a person, etc.) in complexity or difficulty.