steply adjective 1adverb 1forms 2 adjective1 •Stepwise; gradual.The electron-hole pairs produced on this way cause a steply rise of the reverse current (i.e. field emission). — 1968 adverb1 •Step by step; gradually; in steps; stepwise.For an instance, the disadventages about the die CAD system are as the following: * CAD technique can only participate in the design process partially and steply. — 1992 formsmore steply · most steply