soundly

/ˈsaʊndli/
副詞

しっかりと

their houses were soundly built

彼らの家はしっかりと建てられていた

十分な根拠で

there is soundly based reason for optimism

楽観的な見方には十分な根拠がある

ぐっすりと

I slept soundly for the first time since I've been here

ここに来てから初めてぐっすり眠れた

完膚なきまでに

Jim was soundly defeated by his old opponent

ジムは昔の対戦相手に完膚なきまでに打ち負かされた