expansive

adjective

ex·​pan·​sive ik-ˈspan(t)-siv 

1

: having a capacity or a tendency to expand

2

: causing or tending to cause expansion

3

a

: characterized by high spirits, generosity, or readiness to talk : open

grew expansive after dinner

b

: marked by or indicative of exaggerated euphoria and delusions of self-importance

an expansive patient

4

: marked by expansion

especially : having a great expanse or extent : sizable, extensive

an expansive interpretation of the law

5

: characterized by richness, abundance, or magnificence

expansive living

expansive taste

expansively adverb

expansiveness noun

Synonyms

• extensive
• broad
• wide
• sweeping
• deep

Examples of expansive in a Sentence

He was unusually expansive at the press conference.

She was in an expansive mood.

The law was expansive in its scope.

a more expansive treatment of the topic

the hotel's expansive dining room

The house has expansive views of the valley.

Recent Examples on the Web

Larger suites come with expansive bathrooms featuring standalone tubs (stocked with plenty of fragrant lotions and potions for soaking, all from the in-house brand The Erose) as well as your very own steam room, with a window that glimpses across the rooftops of Venice. —Liam Hess, Vogue, 13 Oct. 2025

The brewery boasts an expansive outdoor seating area, plenty of delicious flagship brews, and a rotating events calendar of open mics and karaoke. —Tara Massouleh McCay, Southern Living, 12 Oct. 2025

The interior is further expansive with a slanting panoramic sunroof. —James Raia, Mercury News, 12 Oct. 2025

There are endless movie-sequel ideas in the game’s exceedingly expansive lore. —Bethy Squires, Vulture, 11 Oct. 2025

Word History

First Known Use

1651, in the meaning defined at sense 1

Kids Definition

expansive

adjective

ex·​pan·​sive ik-ˈspan(t)-siv 

1

: having a capacity or a tendency to expand

gases are expansive

2

: causing or tending to cause expansion

an expansive force

3

: being in a good or talkative mood

4

: having considerable extent : broad

expansively adverb

expansiveness noun

Medical Definition

expansive

adjective

ex·​pan·​sive ik-ˈspan(t)-siv 

: marked by or indicative of exaggerated euphoria and delusions of self-importance

a patient with expansive trends

expansiveness

-nəs 

noun