submersed

(verb) sink below the surface; go under or as if under water. Synonyms: submerge, submerse.

(verb) put under water. Synonyms: submerge, submerse. Example: "Submerge your head completely."

(adj) beneath the surface of the water. Synonyms: submerged, underwater. Example: "Submerged rocks."

(adj) growing or remaining under water. Synonyms: subaqueous, subaquatic, submerged, underwater. Examples: "Viewing subaqueous fauna from a glass-bottomed boat." "Submerged leaves."