vaultiest

/ˈvɔːltiɪst/
adjective
  1. Most arched or curved like a vault.
    • Among all the bridges, the vaultiest arch belonged to the ancient stone structure.
    • Her eyebrows raised in the vaultiest arch of surprise when she heard the news.
    • The vaultiest part of the old cathedral ceiling was directly above the altar.
Antonyms
What does "vaultiest" mean? | whatsthatwordmean | whatsthatwordmean