fore·thought 
/ˈfoɚˌθɑ:t/ noun
/ˈfoɚˌθɑ:t/ noun [noncount] : careful thinking or planning about the future
▪ Her decision showed a lack of forethought. ▪ With a little forethought, you can save yourself a lot of work later on.
▪ Her decision showed a lack of forethought. ▪ With a little forethought, you can save yourself a lot of work later on.
