Readily is an adverb that means easily, quickly, or without hesitation. There are many synonyms for this word that can help express the same idea in different ways. For instance, the term "promptly" implies that something can be done immediately while "swiftly" suggests speed or urgency. "Effortlessly" implies that something can be accomplished without much trouble, while "smoothly" suggests that something can be done without any bumps or issues. Other synonyms for readily include readily available, readily apparent, accessible, and instantaneously. Moreover, appropriate, fitting, or suitable words and phrases can also be used depending on the context and intended meaning of the sentence.