1
formal
: talking a lot
He was unusually expansive at the press conference.
She was in an expansive mood.
2
a
: covering or including many things : very broad or wide
The law was expansive in its scope.
a more expansive treatment of the topic
b
: covering a large space or area
the hotel's expansive dining room
The house has expansive views of the valley.
an expansive gesture [=a broad gesture]
3
: growing quickly or steadily : marked by expansion
an expansive economy
Cite this Entry
“Expansive.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/expansive. Accessed 15 Apr. 2026.
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