leakproof

As adjectives the difference between leakproof and undefined

is that leakproof is resistant to leaks; hermetic, sound; as of a dry cell battery while undefined is lacking a definition or value.

As adjectives the difference between airtight and leakproof

is that airtight is being impermeable to air or other gases while leakproof is resistant to leaks; hermetic, sound; as of a dry cell battery.

As adjectives the difference between waterproof and leakproof

is that waterproof is unaffected by water while leakproof is resistant to leaks; hermetic, sound; as of a dry cell battery.

As a verb waterproof

is to make waterproof or water-resistant.

As a noun waterproof

is a substance or preparation for rendering cloth, leather, etc., impervious to water.

Leakresistant is likely misspelled.

Leakresistant has no English definition.

As an adjective leakproof is

resistant to leaks; hermetic, sound; as of a dry cell battery.