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Definitions

opportunistic

[op-er-too-nis-tik, -tyoo-] / ˌɒp ər tuˈnɪs tɪk, -tyu- /
ADJECTIVE
diplomatic
Synonyms
STRONGEST
conciliatory gracious polite strategic
WEAK
adept arch artful astute bland brainy cagey calculating capable clever conniving contriving courteous crafty cunning deft delicate dexterous discreet guileful intriguing prudent savvy scheming sensitive sharp shrewd sly smooth suave subtle wily
Antonyms
STRONGEST
rude
WEAK
artless impolite tactless
ADJECTIVE
vaulting
Synonyms
STRONG
eager
WEAK
enthusiastic excessive high-flown overweening pretentious
ADJECTIVE
worldly
Synonyms
STRONGEST
cosmopolitan hardened practical selfish urbane
WEAK
avaricious been around blasé callous cool covetous disenchanted grasping greedy knowing power-loving self-centered unprincipled uptown worldly wise
Antonyms
STRONGEST
kind
WEAK
immaterial low otherworldly religious unrefined unsophisticated

Example Sentences

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

"We will not submit to opportunistic lawyers looking to manufacture a payday from us," they added.

From BBC • Apr. 23, 2026

To investigate, researchers built a catalog of individual whales using opportunistic sightings and photographs contributed by the public between 2018 and 2023, along with more structured surveys conducted from 2023 to 2025.

From Science Daily • Apr. 13, 2026

The Indonesian oil and gas producer plans to remain prudent and opportunistic in allocating capital amid volatile oil-price environment.

From The Wall Street Journal • Apr. 10, 2026

Investors should watch a couple of names for opportunistic entries as the energy group pulls back.

From Barron's • Apr. 3, 2026

Gravity is opportunistic, amplifying even small condensations of matter.

From "Cosmos" by Carl Sagan

Vocabulary lists containing opportunistic

This Week In Culture: March 29–April 4, 2020

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“Mandatory Vaccination is Not the Answer to Measles” by Bob Sears

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

This Week In Culture: October 19–25, 2019

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!