numerous

adjective

nu·​mer·​ous ˈnü-mə-rəs 

ˈnüm-rə-;

ˈnyü-mə-, 

ˈnyüm-rə-

: consisting of great numbers of units or individuals

born into a numerous family

also : many

received numerous complaints

The people I'd like to thank are too numerous to mention.

numerously adverb

numerousness noun

Synonyms of numerous

• many
• multiple
• several
• countless

Examples of numerous in a Sentence

She decided to leave for numerous reasons.

The birds are becoming more numerous in this area.

Recent Examples on the Web

Plus, Mahomes is coming back from a torn ACL, and Burrow and Jackson have dealt with numerous injuries in recent years. — Jeff Howe, New York Times, 4 Sep. 2026

In numerous articles and op-eds, medical experts and women's health advocates said Clancy's case highlights the need for changes in medical care to prevent tragedies like this. — Carmel Wroth, NPR, 4 Sep. 2026

With no signs of cancerous growth or the grafts migrating, the process appears relatively safe, opening the way for further research into self-transplants made of mature muscle cells as a means of treating numerous conditions. — Mike McRae 02, New Atlas, 3 Sep. 2026

This can lead to numerous health problems, including low blood sugar, fragile bones, traumatic injuries, congenital heart, airway and eye problems and even hydrocephalus, where excess fluid puts pressure on their brain. — Maddie Rhodes, USA Today, 3 Sep. 2026

Word History

Etymology

Middle English, borrowed from Latin numerōsus, from numerus number entry 2 + -ōsus -ous

First Known Use

15th century, in the meaning defined above

Phrases Containing numerous

• too numerous to list
• too numerous to mention

Rhymes for numerous

• humerus
• humorous

Kids Definition

numerous

adjective

nu·​mer·​ous ˈn(y)üm-(ə-)rəs 

: consisting of great numbers

numerous friends

numerously adverb