- present participle of pioneer.
pioneering
Americanadjective
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being a pioneer, one of the first to settle a region, thus opening it for occupation and development by others.
This early pioneering family helped open up western Victoria in Australia.
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being among the first in any field of inquiry or activity; being among those spearheading an initiative of some kind.
Ours is a pioneering institution, continually advancing the understanding of medicine through groundbreaking research.
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Ecology. (of an organism) successfully establishing itself in a barren area, thus starting an ecological cycle of life.
Pioneering species can initiate recovery on drastically disturbed sites like that of the former gas plant.
noun
Other Word Forms
Etymology
Origin of pioneering
First recorded in 1700–10; pioneer ( def. ) + -ing 2 ( def. ) for the adjective senses; pioneer ( def. ) + -ing 1 ( def. ) for the noun sense
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.
In response, Arcadia officials this month began what they say is a pioneering effort to determine how to protect local municipalities from influence by foreign governments.
From Los Angeles Times ● Aug. 22, 2026
Following in the footsteps of pioneering overseas restaurants, more domestic pastry chefs are introducing menus entirely dedicated to the dessert course.
From The Wall Street Journal ● Aug. 19, 2026
The group says pioneering treatments and tests "unimaginable just a decade ago" are now within reach, saying those living with dementia should be supported to take part in the research.
From BBC ● Aug. 17, 2026
For a company that has owned a pioneering AI lab since 2014 and has proclaimed itself “AI-first” since 2016, Google seems to have squandered an early lead, experts say.
From MarketWatch ● Aug. 15, 2026
Many westerners believed that the pioneering women who had moved west and endured significant hardship now deserved the right to participate in government through the vote.
From "Votes for Women!" by Winifred Conkling
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.