1) Afloat 2) Awash 3) Covered with water 4) Full 5) Inundated 6) Overflowing 7) Overwhelmed 8) Sunken 9) Underwater 10) Waterlogged 1) Afloat 2) Awash 3) Engulfed 4) Full 5) Inundated 6) Overcome 7) Overpowered 8) Overran 9) Overwhelmed 10) Powerless 11) Soaked 12) Submerged 13) Swarming 14) Waterlogged 
• (imp. & p. p.) of Flood
A condition in which the soil surface is temporarily covered with flowing water from any source, such as streams overflowing their banks, runoff from adjacent or surrounding slopes, inflow from high tides or any combination of sources. ... (09 Oct 1997) ... 
[adj] - rendered powerless especially by an excessive amount or profusion of something