by and by

/baɪ ənd baɪ/
adverb
  1. At some time in the future; eventually or before long.
    • Don't worry, by-and-by the rain will stop and we can go outside.
    • By-and-by, the little seed grew into a tall sunflower.
    • She promised to finish the project by-and-by, once she had more time.
Antonyms
What does "by and by" mean? | whatsthatwordmean | whatsthatwordmean