In a gradual manner; making slow progress; slowly.(adverb)
By degrees(adverb)
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Use "gradually" in a sentence
"I do really think, girls, your father is gradually -- mind, I say, _gradually -- gradually_ taking leave of his senses. ""
"Her expression gradually softened to something kind and gentle."
"As the term gradually came to be used, a "university" was one of these major, international schools that was distinguished from others by its possessing an official charter (granted by a royal or ecclesiastical authority), a set of statutes, and an established form of governing itself."