The Collaborative International Dictionary of English v.0.48:
nonsubmergible \nonsubmergible\ nonsubmersible \nonsubmersible\adj. not submersible or submergible. Opposite of submersible. [WordNet 1.5]WordNet (r) 3.0 (2006):
nonsubmersible adj 1: not submersible or submergible [syn: nonsubmersible, nonsubmergible] [ant: submergible, submersible]