taru-adjective, adverb taking the 'to' particle
Literary taru-adjective describing a person, attitude, or atmosphere that is severe, imposing, or forbidding. Often used in written descriptions.
父は厳とした態度で私を見つめた。
My father stared at me with a stern attitude.
会議室には厳とした空気が漂っていた。
A solemn atmosphere hung over the conference room.
The kanji 厳 is used for its meaning of 'strict' or 'severe'. The reading げん is the on'yomi. The word is a classical Chinese-derived form used in literary Japanese.