いやな (translations)→ awful bad bilious boring dirty disagreeable dismal disturbingly dreadful harsh leprous lousy noisome odious ominously paralytic queasy shitty terrifying troubled unloved unwanted wicked
すさまじい (translations)→ appalling awfulness badly brutal desperately distorting ferocious fierce gigantic great horrifying incredible intense large mean-spirited mighty oppressive pervade reckless shocking sick terrible tremendous
凄まじい (translations)→ ferocity spectacular