half-submerged

adjective

1. under the surface of water or any other enveloping medium; inundated.
2. hidden, covered, or unknown: There are many submerged facts which could have a bearing on the case.
3. poverty-stricken; destitute; impoverished: a program to aid the submerged socioeconomic groups.

adjective

1. (of plants or plant parts) growing beneath the surface of the water
2. hidden; obscured
3. overwhelmed or overburdened