pioneering

American

[pahy-uh-neer-ing] / ˌpaɪ əˈnɪər ɪŋ /

adjective

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.
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.
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

the act or process of being a pioneer; the early settling of land, or the first forays into some type of activity.

I read about that forward-thinking doctor in an article on the pioneering of in vitro fertilization.

Other Word Forms

Derived Forms

unpioneering

adjective

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.

The pioneering research Aidan donated his brain matter to has allowed scientists to show how a toxic form of a protein linked to Alzheimer's can attach to and damage the connections between brain cells.

From BBC • Jun. 2, 2026

The company is one of just a handful of players pioneering neutral-atom architecture, and serves as the public market’s solitary vehicle for investing in the technology.

From Barron's • May 20, 2026

His pioneering rocket company SpaceX filed Wednesday for what’s expected to be the largest initial public offering in history, potentially raising at least $75 billion and valuing the company at well over $1 trillion.

From Los Angeles Times • May 20, 2026

It makes sense to compare the debuts of the pioneering web browser and the AI agent, because the rallies that followed were driven by a similar need — the need for more speed.

From MarketWatch • May 15, 2026

Let us follow in the footsteps of these pioneering missions, and visit another world.

From "Cosmos" by Carl Sagan

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023