serious in Japanese
serious in Japanese
本気
Without humor or expression of happiness; grave in manner or disposition
真剣
Without humor or expression of happiness; grave in manner or disposition
真面目
Without humor or expression of happiness; grave in manner or disposition
真剣
Important; weighty; not insignificant
真面目
Important; weighty; not insignificant
深刻
Important; weighty; not insignificant
真面目
Really intending what is said (or planned, etc); in earnest; not jocular or deceiving