constantly, piecemeal, stepwise, in stages, bit-by-bit, in due succession, by installments, progressively, by degrees, by regular stages, perceptibly, deliberately, increasingly, in small doses, regularly, step-by-step, through all gradations, insinuatingly, successively, sequentially, grade by grade, stone by stone, inch by inch, steadily, a little at a time, slowly, continuously, little by little, unceasingly, serially
gradually (part of speech: adverb)
- Mrs. Jasher gradually became more alive, and a faint sigh escaped from her lips, as her wounded bosom rose and fell with recovered breath. - "The Green Mummy", Fergus Hume.
- I don't ask you to go as far as that; but one or two kisses- you can begin with her hand if you like, and work on gradually. - "The Simpkins Plot", George A. Birmingham.
- When I was younger, he went on, I used to like meeting successful people- it was only rarely that I got the chance- but I gradually discovered that they were not, on the whole, the interesting people. - "Father Payne", Arthur Christopher Benson.