opportunistic

adjective

op·​por·​tu·​nis·​tic ˌä-pər-tü-ˈni-stik How to pronounce opportunistic (audio)
-tyü-
: taking advantage of opportunities as they arise: such as
a
: exploiting opportunities with little regard to principle (see principle sense 1) or consequences
a politician considered opportunistic
an opportunistic investment
b
: feeding on whatever food is available
opportunistic feeders
opportunistic bears
c
: being or caused by a usually harmless microorganism that can become pathogenic when the host's resistance is impaired
opportunistic infections
opportunistic diseases
opportunistically adverb

Examples of opportunistic 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.
This capital will be directed towards organic growth, value-accretive M&A, attractive, progressive dividends (50% dividend payout ratio), and opportunistic share buybacks. Joe Cornell, Forbes.com, 8 July 2025 Before then, coach Mikey Varas and squad will attempt to learn from several defensive breakdowns that, exploited by opportunistic Houston, showed how vulnerable a first-place team can be. Tom Krasovic, San Diego Union-Tribune, 6 July 2025 Luna, the Real Salt Lake star who has become a leader of this Gold Cup group, grabbed the opportunistic first goal after Luca de la Torre’s shot from distance was parried back into the box. Paul Tenorio, New York Times, 3 July 2025 The story of a loser who's lucky at gambling, The Winner cast Madsen as Wolf, the opportunistic brother of D'Onofrio's Phillip. Randall Colburn, EW.com, 3 July 2025 See All Example Sentences for opportunistic

Word History

Etymology

opportunist + -ic entry 1

First Known Use

1892, in the meaning defined above

Time Traveler
The first known use of opportunistic was in 1892

Browse Nearby Words

Cite this Entry

“Opportunistic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/opportunistic. Accessed 19 Jul. 2025.

Kids Definition

opportunistic

noun
op·​por·​tu·​nis·​tic -t(y)ü-ˈnis-tik How to pronounce opportunistic (audio)
: taking advantage of opportunities as they arise: as
a
: exploiting opportunities with little regard to principle or consequences
an opportunistic cheater
b
: feeding on whatever food is available
opportunistic feeders

Medical Definition

opportunistic

adjective
op·​por·​tu·​nist·​ic -t(y)ü-ˈnis-tik How to pronounce opportunistic (audio)
1
: of, relating to, or being a microorganism that is usually harmless but can become pathogenic when the host's resistance to disease is impaired
2
: of, relating to, or being an infection or disease caused by an opportunistic organism
Pneumocystis carinii pneumonia and other opportunistic infections that kill AIDS patientsNew York Times

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