1. Growing or remaining under water
   - subaqueous, submerged, submersed, underwater 
2. Partially aquatic; living or growing partly on land and partly in water
   "a marginal subaquatic flora"
   - semiaquatic

See also: aquatic

• inhibition
• inhibitor
• inhibitory
• inhomogeneity
• inhomogeneous
• inhospitable
• inhospitableness
• inhospitably
• inhospitality
• inhuman
• inhuman treatment
• inhumane
• inhumanely
• inhumaneness
• inhumanity
• inhumanly
• inhumation
• inhume
• inhumed
• Inigo Jones
• inimical
• inimically
• inimitability
• inimitable
• inimitableness