あやふやな (translations)→ flimsy fluffy incoherently tentatively
たどたどしい (translations)→ childish halting inadequate
ぼんやり (translations)→ absently aimlessly bit blankly blurred confusedly daze dim faintly foolishly fume idly listlessly misty numbly stupor unobservant vacantly vaguely
空虚な (translations)→ frothy hollow insincere
見えない (translations)→ imaginary lose transparent unknown unlikely-looking
心もとない (translations)→ disconsolate unsettling unsound unusual
淡い (translations)→ bare dull faint light milky pale soft vague
半信半疑 (translations)→ incredulity skeptical
不安定な (translations)→ brittle wavy
落ち着かない (translations)→ disquieting edgy restiveness restless uncomfortable unrestful unsteady