真面目 describes a serious personality or attitude in general, while 真顔 refers specifically to a serious facial expression at a given moment.
まとも and 真面目 both describe someone honest and sensible, but 真面目 stresses diligence and seriousness of effort while まとも stresses being basically decent or 'not crooked'.
真面目 is the neutral word for 'serious' or 'diligent', while 生真面目 adds an extra layer of intensity, implying someone is overly serious to the point of being rigid or humorless.
真面目 is a native Japanese word describing a person's diligent or sincere character, while シリアス is a loanword emphasizing the weighty, unhumorous tone of a situation or attitude.
真面目 describes a serious, earnest attitude toward things in general, while 勤勉 specifically highlights steady hard work and industriousness.
真面目 describes a person's earnest, diligent character, whereas 地道 describes the steady, unflashy nature of an effort or method itself.
真面目 describes general earnestness and seriousness, whereas 几帳面 specifically highlights meticulous attention to order and detail.
真面目 is the everyday word for being serious or diligent, whereas 真摯 is more formal and stresses deep sincerity, often in official or written contexts.
真面目 is the standard, formal word for 'serious/diligent', while がち is slangy and emphasizes raw authenticity rather than diligence.
真面目 means serious, earnest, or diligent in a general sense, whereas 厳か implies a formal, awe-inspiring solemnity.
