upstep

/ˈʌpˌstɛp/
verb
  1. To increase or rise in level, amount, or intensity.
    • We need to upstep our efforts if we want to finish on time.
    • The river levels upstepped quickly after the heavy rain.
    • Her heart rate upstepped when she heard the good news.
Antonyms
noun
  1. An increase or rise in level, amount, or intensity.
    • The company saw an upstep in sales after the new ad campaign.
    • There was a noticeable upstep in the temperature this afternoon.
    • The upstep in her confidence was clear after she won the award.