When Ella Carey promises something will be kept "in the vault," it's a lot safer bet than the same vow from a blabber-mouthed Seinfeld cast member, who notoriously spilled the beans anytime a secret was dubbed vault-worthy.
Source: wiktionary
Vault-worthy
Synonyms for "vault-worthy"
Ranked by relevance and common usage.
Sample sentences
3 total sentences available.
Google parkour, campus and map, and you'll find[…]photos, taken at the University of Massachusetts at Amherst, of vault-worthy railings and bulwarks galore.
Source: wiktionary
In the regal style of society parties past, nearly 600 guests donned opulent black tie attire -- including several couture gowns and lots of vault-worthy jewels.
Source: wiktionary
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.