あらたまった の訳語→ formal polite serious
うやうやしく の訳語→ civilly politely reverently
きまじめに の訳語→ dutifully humorlessly straight
こっくり の訳語→ brisk dumbly sympathetically
しかつめらしく の訳語→ portentously primly solemnly
もったいぶった の訳語→ confiding haughty oracular portentous reluctant smug stilted stuck-up superior theatric
もったいぶって の訳語→ deliberate deliberately significantly stuffily
よほど の訳語→ appalling certainly comfortable considerably damned deeply definitely far long more most much particularly pretty progressively quite real really so sufficiently very
真顔で の訳語→ dryly frankly genuinely intently judiciously seriously
物々しく の訳語→ importantly majestically