QUAGGIEST
QUAGGY
boggy, marshy, miry, mucky, muddy, quaggy, sloppy, sloughy, soggy, squashy, swampy, waterlogged
(adjective) (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”
Source: WordNet® 3.1
Adjective
quaggiest
superlative form of quaggy: most quaggy
Source: Wiktionary
QUAGGY
Quag"gy, a.Etym: [See Quag, Quagmire.]
Definition: Of the nature of a quagmire; yielding or trembling under the
foot, as soft, wet earth; spongy; boggy. "O'er the watery strath, or
quaggy moss." Collins.
Source: Webster’s Unabridged Dictionary 1913 Edition