vacilacion

n. vacillation, swaying to and fro, fluctuation; hesitation, wavering

= hesitancy, flip-flop, vacillation.
Ex: Librarian hesitancy to weed individual titles or types of titles also was cited as an important factor discouraging weeding.
Ex: Within this debate, there is flip-flop between those who argue for methods influenced by objectivism and those who argue for a more egalitarian approach.
Ex: She was born in the outback of Australia where all people were powerless in the face of the vacillations of nature.