over·arch·ing 
/ˌoʊvɚˈɑɚtʃɪŋ/ adjective
/ˌoʊvɚˈɑɚtʃɪŋ/ adjective formal : including or influencing every part of something
▪ the book's overarching theme ▪ Computer downtime is an overarching problem in all departments.
▪ the book's overarching theme ▪ Computer downtime is an overarching problem in all departments.
