Synonyms

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

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.

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

The technique traces back to English physicist Henry Cavendish, who conducted a pioneering gravity experiment in 1798.

From Science Daily • May 18, 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

All the growth is enabled by lower costs to reach space, thanks mainly to SpaceX for pioneering reusable rockets.

From Barron's • May 14, 2026

Reggie's own adoption of technology very much paralleled what was happening around the country, a phenomenon documented in a series of pioneering studies initiated by the Kaiser Family Foundation in 1999.

From "A Deadly Wandering: A Mystery, a Landmark Investigation, and the Astonishing Science of Attention in the Digital Age" by Matt Richtel

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