Undeterred

adj

adj ·3 syllables ·Rare ·Advanced level

Definitions

Adjective
  1. 1
    Not deterred or put off; undiscouraged.

    "Undeterred, TfL wants to extend the Elizabeth line to Heathrow Airport, both the north and south from Langley and Staines, and also from the present southeastern limit of Abbey Wood to Ebbsfleet."

Adjective
  1. 1
    not deterred wordnet

Synonyms

All synonyms
undiscouragedundiscouraged

Example

More examples

"Tom was undeterred by Mary's brash manner; instead it impressed him from the start."

Etymology

From un- + deterred.

Related phrases

put off

More for "undeterred"

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.