(1)強さと確実さで
(2)with strength and soundness; "a solidly built house"
さらに詳しく
(1)頑固に
(2)揺るぎなく
(3)unshakably
(4)inflexibly; unshakably; "adamantly opposed to the marriage"
(1)確固たる態度で
(2)in a resolute manner; "he was stoutly replying to his critics"
(1)頑固な反動的な方法で
(2)かたさがある
(3)with firmness
(4)in a stubborn unregenerate manner; "she remained stubbornly in the same position"