We don't have synonyms for downstyle yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are downstage, downscale and downstate.
(adj) :
(typography, capitalization) Which only capitalizes words (e.g. in headers) that would be capitalized in a normal sentence: which is styled in sentence case.
(adj) :
(typography, capitalization) Which only capitalizes words (e.g. in headers) that would be capitalized in a normal sentence: which is styled in sentence case.