Skip to learning

BUILD YOUR VOCABULARY

Word of the Day

Discover a useful word, hear its pronunciation and use it in a sentence.

YOUR WORD COLLECTION

Find your next word.

1,029 words to explore

Clear all filters

Related to “energetic”. Remove related-word filter

Browse words A–Z

See words

Choose a letter to browse the full collection. Numbers show how many words are available.

Adjective

indefatigable

IPA /ˌɪndɪˈfætɪɡəbl/

Continuing to work towards something with steady energy and determination, even when the task is difficult or takes a long time.

See example sentence: indefatigable

Our indefatigable neighbour organised volunteers every weekend until the garden was restored.

PUT IT INTO PRACTICE

Make one word yours.

Choose a word, say it aloud and write a sentence about your day. Then try a short practice to check your understanding.