from the GNU version of the Collaborative International Dictionary of English
- adj. So tight as to retain, or not to admit, water; not leaky.
from The Century Dictionary and Cyclopedia
- So tight as to resist the passage of water; impenetrable by water.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. not allowing water to pass in or out
- adj. without flaws or loopholes
Sorry, no etymologies found.