What is another word for spur-of-the-moment?
Pronunciation: [spˈɜːɹɒvðəmˈə͡ʊmənt] (IPA) 
Spur-of-the-moment is a phrase used to describe sudden decisions or actions taken without any prior planning or preparation. There are several synonyms that can be used for this phrase, including impulsive, spontaneous, off-the-cuff, unplanned, and unrehearsed. These synonyms describe the same concept as spur-of-the-moment and can be used interchangeably to express a sudden decision or action. Other similar phrases might include last-minute, on-the-fly, or instant decision, but these are not exactly synonymous with spur-of-the-moment; rather, they imply a time constraint or urgency that may not necessarily be present in a spur-of-the-moment decision. Regardless of the specific terminology used, spur-of-the-moment decisions can often lead to unexpected and exciting results.
