Synonyms for Spur of the moment

Synonyms starting with letter U

• unthinking

  acting without thinking
• unscripted

  impromptu, unrehearsed
• unrehearsed

  without preparation, made-up, ad-lib
• unpracticed

  spontaneous
• unprepared

  extemporaneous, made-up, ad-lib
• unplanned

  extemporaneous, acting without thinking, improvised
• unpremeditated

  improvised, ad-lib, acting without thinking
• unstudied

  made-up, extemporaneous, unrehearsed
• unbridled

  acting without thinking
• unexpected

  acting without thinking
• unrestrained
• unreflecting
• ungenuine
• unauthentic
• unmethodical
• uncalculated
• unlooked-for
• unpredicted
• uncalled for
• unlooked for
• unanticipated
• unmeditated
• unprompted
• up and down
• unready