slushiest
/ˈslʌʃɪst/Definitions
1. adjective
Having the consistency of, or covered in, slush; consisting of or covered with a mixture of water and ice or snow that is partially frozen.
“After the rain, the streets became the slushiest mess I’ve ever seen.”
2. superlative form of slushy
Most slushy.
“The slushiest part of the road was right where the snowplow had just passed.”