What does sizably mean?
Sizably is an adverb meaning “to a considerable or significant extent.” It is commonly used with comparative expressions such as “larger,” “smaller,” “faster,” or “different,” as well as with verbs such as “increase,” “decrease,” and “improve.” For example, a product may be sizably faster because the word makes clear that the performance difference is substantial rather than marginal. The adverb is particularly common in North American English, although it is also understood in British English, where “sizeably” is sometimes used as an alternative spelling. Sizable can sound like a general intensifier, but sizably has a more specific function: it identifies the scale or importance of a change. It is therefore especially useful in comparisons, analysis, and reporting, where readers need to distinguish a meaningful difference from a minor one.
adverbTo a considerable or significant extent. It describes a difference, increase, reduction, or change that is large enough to be important.
- To a considerable or significant extent, especially when describing an increase, decrease, difference, or change.
"The revised model is sizably faster and more energy-efficient than the original."
"Remote work reduced the company's office costs sizably."
"Her approach differs sizably from the traditional method."
Sizably turns the idea of a significant difference into a precise adverb: the gap is not merely there—it matters.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does sizably come from?
Sizably was formed by adding the adverbial suffix -ly to sizable. Sizable itself combines the English noun size with the suffix -able and dates from the early modern period. Forms such as sized and sizing reflect the same English root, while sizably developed as the adverb corresponding to the adjective sizable.
How sizably is actually used
The adverb is especially common in North American English. It is formal or neutral in register and is often interchangeable with “considerably” and “substantially,” although it more explicitly emphasizes that the degree of difference is substantial.
Easily confused with sizably
Both words have the same standard pronunciation, but “sizably” is the more common spelling in North American English, while “sizeably” is a recognized alternative, especially in British usage.