pervasive

US /pɚˈveɪ.sɪv/
UK /pɚˈveɪ.sɪv/
1.

thấm qua, thấm vào, xâm nhập

(especially of an unwelcome influence or physical effect) spreading widely throughout an area or a group of people.

:
ageism is pervasive and entrenched in our society