Princeton's WordNet

1. boggy, marshy, miry, mucky, muddy, quaggy, sloppy, sloughy, soggy, squashy, swampy, waterlogged(adj)

   (of soil) soft and watery

   "the ground was boggy under foot"; "a marshy coastline"; "miry roads"; "wet mucky lowland"; "muddy barnyard"; "quaggy terrain"; "the sloughy edge of the pond"; "swampy bayous"

Wiktionary

1. boggy(Adjective)

   Having the qualities of a bog; i.e. dank, squishy, muddy, and full of water and rotting vegetation.

   The edge of the woods led out onto a noisome, boggy fen, a paradise for mosquitos and small frogs.

Webster Dictionary

1. Boggy(adj)

   consisting of, or containing, a bog or bogs; of the nature of a bog; swampy; as, boggy land

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