1
: providing, contributing to, or marked by adaptation : arising as a result of adaptation
… left ventricular hypertrophy should not be considered solely an adaptive response to an increased ventricular workload.—Edward D. Frohlich et al.
An effort to identify the healthy adaptive need that is being met by a patient's behavior can result in increased empathy for the patient.—Thomas O. Brackett
specifically : of, relating to, or being a heritable trait that serves a specific function and improves an organism's fitness or survival
Webbed feet is an adaptive trait in aquatic animals.
2
a
: designed or intended to assist disabled persons : assistive
adaptive devices
b
: engaged in by disabled persons with the aid of equipment or techniques adapted for a disability
adaptive skiing
c
: participating in a sport with the aid of equipment or techniques adapted for disability
an adaptive skier
adaptively adverb
adaptiveness noun

Examples of adaptive in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In these situations, withdrawing into a literal or symbolic dark room—avoiding sources of stress and going to a safe place—can be adaptive in the short term. — Maia Szalavitz, Scientific American, 20 Oct. 2026 These include immune amnesia, a type of immunosuppression in which the measles virus destroys immune cells and adaptive responses. — Beth Mole, ArsTechnica, 19 Oct. 2026 Finally, get 20% off the Garmin Forerunner 165 Smartwatch, which offers a brilliant AMOLED touchscreen and adaptive training plans. — Juhi Wadia, PC Magazine, 16 Oct. 2026 One proposal that has drawn interest from Historic Denver is the potential adaptive reuse of the Zuni Steam Plant, which could become a cultural hub within the development. — Jasmine Arenas, CBS News, 15 Oct. 2026 See All Example Sentences for adaptive

Word History

Etymology

adapt + -ive

First Known Use

1760, in the meaning defined at sense 1

Time Traveler
The first known use of adaptive was in 1760

Cite this Entry

“Adaptive.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/adaptive. Accessed 20 Oct. 2026.

Medical Definition

adaptive

adjective
1
: capable of, suited to, or contributing to adaptation
… adaptive traits that enhance survival and diversification of species …—Science News
2
a
: used to assist a person with a disability in performing a certain task or activity : assistive
Adaptive equipment might include Braille keyboards, voice synthesizers and adjustable-height computer tables.—Stuart Gordon, The Modesto (California) Bee
b
: engaged in by disabled persons with the aid of equipment or techniques adapted for a disability
It is called wheelchair basketball, an adaptive sport for disabled people …—James Nix, The Independent Tribune (Concord, North Carolina)
c
: participating in a sport with the aid of equipment or techniques adapted for a disability
… adaptive skiers cranking down the mountain in their ski chairs …—Moira McCarthy, The Boston Herald
adaptively adverb
adaptiveness noun
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