airtight, leaky, waterproof, weatherproof, flimsy, leakproof, impregnable, sturdy, lockable, epoxy glue, sealed, closable, impenetrable, ironclad, ballasted, impermeable, cleanable, bulletproof, tamperproof, grouted, bombproof, sealable, windproof, dimensioned, seaworthy, peelable, fireproof, louvered, insulative, rustproof, bevelled, perspex, earthed, neoprene, piston rod, welded, unseaworthy, pressurized, retractable, secure, prestressed, bilge pump, counterweighted, unbreakable, removable, breeched, intact, insulated, limpet, porous, rubberised, polycarbonate, gusseted, demountable, antistatic, tensioned, indestructible, foolproof, forepeak, hollow, intumescent, zippered, elastomeric, reinforced concrete, moulded, nonporous, rainproof, shatterproof glass, shatterproof, shockproof, pintle, submergible, stoppered, plain sailing, countersunk, collapsable, velcro, frangible, protective, soakaway, cotter pin, durable, recommendable, translucent, snug, mountable, compressible, battened, operable, floor joist, absorbant, inbuilt, irremovable, mesh, elasticated, fume cupboard, insertable, plexiglas, hardstand, sacrificial anode, fin keel, impervious, empirical, super, bodily, casing, clean, manifest, reinforcement, accrue, bin, brief, contingent, cooperative, natural, outgoing, proprietary, ski, tense, vat, vocal, yeast, gastight, plexiglass, proof, semipermeable, soundproof, corrugated

caisson, cofferdam, freeboard deck, kayak, pneumatic caisson, sealed, waterproof

incontestable, incontestible, ironclad, leakproof, seaworthy, tight, unassailable, unshakable