groundbreaking
adjective/ˈɡraʊndˌbreɪkɪŋ/
Frequency rank: #8,020 most common English word
Meaning
innovative and introducing new ideas or methods; never done before.

Example sentence
The scientist received an award for her groundbreaking research on cancer treatment.
Synonyms & related words
- pioneering
- revolutionary
- innovative
- landmark
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