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stern; grave; austere; imposing; dignified; formidable; solemn; majestic
strict (e.g. security); severe; firm; rigid; rigorous
いかめしい顔の警備員が立っていた。
A guard with a stern face was standing there.
警備員の態度はとてもいかめしかった。
The security guard's manner was very stern.
制服姿でもそれほどいかめしくない。
Even in uniform, he doesn't look that formidable.