Strict; rigid — describing someone or something very strict, severe, or inflexible.
彼の父親はとても厳格で、門限を破ると厳しく叱られた。
His father was very strict; he was severely scolded if he broke curfew.
会社は新しい安全基準を厳格に適用した。
The company applied the new safety standards strictly.
試験の採点は厳格に行われた。
The exam grading was carried out rigorously.