miry

1. (of soil) soft and watery

    e.g. 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

    Synonym: boggy marshy mucky muddy quaggy sloppy sloughy soggy squashy swampy waterlogged