ばんじゃく【盤石】 1 <大きな石> a huge rock. 2 <堅固なこと> ¶盤石のごとき　 as firm as a rock (不動の); adamant (堅固な) /盤石の意志　 adamant [indomitable, rock-solid] determination; one's adamantine will ‖我々の備えは盤石だ.　 We are impregnable [solid as a rock]. /会社の経営が盤石なのは先代社長の努力のおかげだ.　 The firm's rock-solid management is due to the efforts of the previous CEO.