In a consecutive manner.

Roget 275: slowly etc. adj.; leisurely; piano, adagio; largo, larghetto; at half speed, under easy sail; at a foots pace, at a snail's pace, at a funeral pace; in slow time, with mincing steps, with clipped wings; haud passibus aequis [Lat.] [Vergil]. gradually etc. adj.; gradatim [Lat.]; by degrees, by slow degrees, by inches, by little and little; step by step, one step at a time; inch by inch, bit by bit, little by little, seriatim; consecutively.    ... show more