creep up on

US /kriːp ʌp ɑːn/
UK /kriːp ʌp ɑːn/
"creep up on" picture
1.

acercarse sigilosamente, sorprender

to approach someone or something slowly and quietly so as not to be noticed

:
The cat tried to creep up on the bird.
El gato intentó acercarse sigilosamente al pájaro.
Don't let problems creep up on you; address them early.
No dejes que los problemas te sorprendan; abórdalos temprano.