BOTTOMMOST Meaning of BOTTOMMOST in English bot ‧ tom ‧ most /ˈbɒtəmˌməʊst $ ˈbɑːtəmˌmoʊst/ BrE AmE adjective [only before noun] in the lowest, furthest, or deepest position or place OPP topmost Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012