Vaultable

Part of speech: adjective

Definitions

1. Having the capability to be formed into an arch or vault structure
2. Describing something that can be covered or enclosed with a vaulted ceiling or archway
3. Characterizing an architectural feature that allows for the construction of a vault or arched space

Etymology: "Vaultable" is a plain formation: the verb "vault" with the suffix "-able," meaning capable of being done. Here "vault" is used in its architectural sense, to cover a space with an arched roof or ceiling, so a vaultable structure is one that can be shaped into such an arch. The suffix "-able" came into English through Old French from Latin "-abilis," which conveyed the sense of being able to be acted upon. Attached to a verb, it yields adjectives like "readable" or "washable," and "vaultable" follows that pattern exactly.

Synonyms: jumpable, leapable, scalable, climbable, accessible

Antonyms: unjumpable, unscalable, inaccessible