Last Updated：2025/11/26

(transitive) To build beneath another structure; provide a foundation or support for; undergird.

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underbuild

Source Word

underbuild

Verb

transitive

(transitive) To build beneath another structure; provide a foundation or support for; undergird.

Japanese Meaning

（他の構造物の下に）基礎を築く、支えとなる構造体を付け加える / （建物の下部に）補強のための構造体を設ける

The architects planned to underbuild the library with a new basement auditorium to expand public space.

建築家たちは公共スペースを拡充するために、図書館の下に新しい地下ホールを建設する計画を立てた。

Sense（1）

(transitive) To build beneath another structure; provide a foundation or support for; undergird.

The two eastern arches have been underbuilt for the sake of strengthening them.

Sense（2）

(transitive) To perform insufficient construction on a building or in an area; build below a specified requirement or standard.

underbuilds

（ present singular third-person ）

underbuilding

（ participle present ）

underbuilt

（ participle past ）

underbuilt

（ past ）