IELTS Anvil

undeterred

CEFR: C1

Continuing with a difficult course of action without being discouraged or stopped by setbacks.

Synonyms

unfazed
undaunted

Common Collocations

undeterred by failure
remain undeterred
undeterred by obstacles

Example Sentence

Undeterred by fierce commercial skepticism, the engineers perfected their prototype solar desalination plant.

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