おそるおそる (translations)→ apprehensively cautiously doubtfully fearfully gingerly nervously reluctantly slowly tentatively timidly
こわごわ (translations)→ deprecatory terror uneasily
しきりと (translations)→ enormous frequently persistently really vivid
ひたすら (translations)→ all avidly doggedly eagerly earnest earnestly intently just literally stolidly undeviatingly unflagging
気づかわしげに (translations)→ concernedly
気になって (translations)→ curious solicitously
苦にする (translations)→ difficulty worry
懸命に (translations)→ busy contrive frantically furiously hard judiciously resolutely somehow tightly tirelessly
心配 (translations)→ angst apprehension concern danger distress fear fret perturbation regret scared wish worried
注意深く (translations)→ attentively closely heedfully mindfully
必死に (translations)→ carefully desperate desperately great intent spirited stubbornly
不安げに (translations)→ uncertainly unhappily
