mostly.
Mainly or chiefly; for the most part; usually, generally, on the whole.
Meaning & usage
Mainly or chiefly; for the most part; usually, generally, on the whole.
They're mostly good people, although they have made a few mistakes.
To the greatest extent; most.
Synonym of probably, likely.
Where this word comes from
Etymology tree English most Middle English -ly English -ly English mostly From most + -ly. The sense “probably” is a calque from Indian languages such as Tamil அனேகமாக (aṉēkamāka).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.