Dictionary.com
Thesaurus.com
Synonyms

mostly

American  
[mohst-lee] / ˈmoʊst li /

adverb

  1. for the most part; in the main.

    The work is mostly done.

  2. chiefly; principally.

  3. generally; customarily.


mostly British  
/ ˈməʊstlɪ /

adverb

  1. almost entirely; chiefly

  2. on many or most occasions; usually

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of mostly

First recorded in 1585–95; most + -ly

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Mostly, these conversations, when not venting about the disruption to bus schedules and the noisiness of bomber jet flyovers, focus on the absolute failure of the fair.

From Slate • Jul. 1, 2026

Mostly, though, it is a hero’s romp through a media revolution.

From The Wall Street Journal • Jun. 27, 2026

Mostly it amounts to a ceasefire, with all the details punted to a 60-day period that will supposedly produce “the final deal.”

From Salon • Jun. 19, 2026

Mostly, “Girls Like Girls” wins us over with a singular type of first-film assuredness: a familiar story presented as the most personal reveal ever.

From Los Angeles Times • Jun. 19, 2026

Mostly we’re going around, halfheartedly dusting ledges that don’t need to be dusted.

From "The Wrong Way Home" by Kate O’Shaughnessy

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "mostly" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com