あやふやな の訳語→ flimsy fluffy tentatively uncertain
とりとめがない の訳語→ far-reaching uncontrolled
なにか の訳語→ anything bit casual embarrassment little slight some someone something what
ぶつぶつ言う の訳語→ complain grumble
めちゃくちゃに の訳語→ madly wild wildly
夢中で の訳語→ busy crazily desperately feverishly frantically