Liquid
The opposite of viscous is runny.
swim?
rain
Humidity means the amount of water vapor in the air. It begins with the letter H.
usgs
dilute
Dilute
"Ocean"...?
Anphibian
No, the word 'runny' is not a verb.The word 'runny' is an adjective, a word used to describe a noun.The action verbs are: run, runs, running, ran.Examples:Jack can't run today. (verb)He has a runny nose. (adjective)
mer, I think it means "sea"
amphibian