groundbreaking

From Wiktionary

Word parts[change]

ground + breaking

Pronunciation[change]

Adjective[change]

Positive
groundbreaking

Comparative
more groundbreaking

Superlative
most groundbreaking

  1. If an idea is groundbreaking, it is innovative and was never done before.

Noun[change]

Singular
groundbreaking

Plural
groundbreakings

  1. Groundbreaking is the point when the construction of something begins by digging into the ground.
  2. Groundbreaking is a ceremony to mark the beginning of construction.