Definition of opportunistic
: taking advantage of opportunities as they arise: such asa : exploiting opportunities with little regard to principle (see principle 1) or consequences a politician considered opportunistic an opportunistic investmentb : feeding on whatever food is available opportunistic feeders opportunistic bearsc : being or caused by a usually harmless microorganism that can become pathogenic when the host's resistance is impaired opportunistic infections opportunistic diseases
opportunisticallyplay \ˌä-pər-tü-ˈni-sti-k(ə-)lē, -tyü-\ adverb
Recent Examples of opportunistic from the Web
The Milwaukee Brewers are getting a sublime mixture of effective pitching and opportunistic offense these days, with the usual results.
An opportunistic fan reached over the railling and claimed the ball as a souvenir.
That in mind, the sneaker world is insanely opportunistic, so we'd be shocked if a few of these pairs didn't soon end up on eBay or Grailed.
Adding yogurt or other probiotics—especially the kinds that contain Lactobacillus—during and after a course of antibiotics seems to decrease the chances of subsequently developing these opportunistic infections.
Advancements like this are either big wins for inclusion, or opportunistic attempts to capitalize on a giant (and largely underserved) market, or both.
Glencore’s bid is typical of its opportunistic approach to asset-buying.
The offensive attack was opportunistic and relentless, swarming Giants starter Ty Blach with an array of bleeders, bloopers and broken bats.
So May's opportunistic bid for more power has resulted in the exact opposite.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'opportunistic'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of opportunistic
Medical Definition of opportunistic
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 patients—New York Times
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