Synonyms for watertight

Synonyms for (adj) watertight

Synonyms: unassailable, bulletproof, unshakable, watertight

Definition: without flaws or loopholes

Usage: an ironclad contract; a watertight alibi; a bulletproof argument

Similar words: incontestable, incontestible

Definition: incapable of being contested or disputed

Synonyms: watertight

Definition: not allowing water to pass in or out

Similar words: tight

Definition: of such close construction as to be impermeable

Usage: a tight roof; warm in our tight little house

Visual thesaurus for watertight