From Longman Dictionary of Contemporary Englishbottom-upˌbottom-ˈup adjective POSSIBLEa bottom-up plan is one in which you decide on practical details before thinking about general principles OPP top-down
Examples from the Corpus
bottom-up• This is not to say that there was no top-down activity or that all bottom-up activity will produce meaningful infrastructure.• The better approach is a combination of the top-down and the bottom-up approach.• Strong, bottom-up commitment is the support pillar for all the rest.• It is paralleled by a sharing of what I have called the bottom-up dreams of the businesses themselves.• Massive bottom-up infrastructure sprouted all over the world in bits and pieces, proliferated, and a new paradigm was created.• The most prominent of these lessons is that bottom-up infrastructure succeeds and sometimes even spectacularly.• They point out that bottom-up statistical methods are efficient from a computational point of view, but exhibit poor error correcting capabilities. 