invasive species

is not in our dictionary (yet). Here's what it could mean:

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noun

An organism, such as a plant, animal, or fungus, that is not native to a specific location and has a tendency to spread to a degree believed to cause damage to the environment, human economy, or human health.

Example Sentences

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

The other factor in the region’s monster-sized smallmouth population is environmental: The arrival and prevalence of goby fish, an invasive species which arrived in the 1990s and became a smallmouth-fattening buffet.

From The Wall Street Journal ● Aug. 29, 2026

They claim the park needs grazing to keep a lid on invasive species.

From Los Angeles Times ● Aug. 28, 2026

Thesaurus

Possible Synonyms

exotic species
ecological threat
alien species
foreign pest
introduced species

Possible Antonyms

local flora and fauna
native species
indigenous species
keystone species
endemic species