Answer :
Final answer:
The word that best fits the context is 'Spontaneous.'
Explanation:
Spontaneous is the vocabulary word that makes the most sense in the context of the sentence. In this sentence, the decision to dye hair pink is portrayed as impulsive and unplanned, indicating a spontaneous action.
Learn more about Vocabulary and Sentence Context here:
https://brainly.com/question/12298994