ぐらつく

(1) 何かについて未決定にする矛盾する位置または行動方針の間で迷う(be undecided about something; waver between conflicting positions or courses of action; "He oscillates between accepting the new position and retirement")(be undecided about something)(waver between conflicting positions or courses of action)

⇒彼は、新しい地位の受け入れと引退の間で揺れる(waver between conflicting positions or courses of action)

(2) 不安定に動く(move unsteadily; "His knees wobbled"; "The old cart wobbled down the street")(move unsteadily)

⇒古いカートは、通りでぐらついた(move unsteadily)

(3) 不確かである、または弱い(be unsure or weak; "Their enthusiasm is faltering")(be unsure or weak)

⇒彼らの熱意は衰えている(be unsure or weak)

(4) 揺れる運動で、不安定に動く(move unsteadily, with a rocking motion)

(5) 急速に集中的に震動するか振動する(shake or vibrate rapidly and intensively; "The old engine was juddering")(shake or vibrate rapidly and intensively)

⇒古いエンジンは激しく振動していた(shake or vibrate rapidly and intensively)

(6) ゆっくりそして不安定に動く(move slowly and unsteadily; "The truck lurched down the road")(move slowly and unsteadily)

⇒トラックは道の下で急に傾いた(move slowly and unsteadily)

(7) あちこちに揺れる(sway to and fro)