indefatigable
/,indi'fætigəbl/
Học thuậtThân thiện
Definition
- Adjective:
- Showing sustained enthusiastic action with unflagging vitality: Describing a person or their efforts that continue with great energy and enthusiasm, without becoming tired or giving up.
Usage
- The adjective "indefatigable" is used to describe a person, their work, or their spirit. It is a formal word that emphasizes persistent energy and determination over a long period.
- It typically comes before a noun (e.g., an indefatigable campaigner) or after a linking verb like "was" or "remained" (e.g., she remained indefatigable).
Examples
- Adjective:
- She was an indefatigable campaigner for human rights.
- His indefatigable optimism inspired everyone on the team.
- The researcher's indefatigable efforts finally led to a breakthrough.
Advanced Usage
- "indefatigable in one's pursuit/efforts": This structure highlights the relentless nature of the activity.
- He was indefatigable in his pursuit of the truth.
- "indefatigable spirit/energy": Used to describe an enduring quality of a person.
- Despite her age, her indefatigable spirit kept her traveling the world.
Variants and Related Words
- Indefatigably (adverb): In a tireless manner.
- She worked indefatigably to finish the project on time.
- Indefatigability (noun): The quality of being tireless. (This is a rare, formal noun).
Synonyms
- Tireless: Not ceasing or becoming tired.
- Unflagging: Not becoming weaker or less determined.
- Unwearying: Not tiring or causing fatigue.
- Dogged: Very determined, not giving up easily (focuses more on stubborn determination than energy).
Antonyms
- Fatigable: Capable of being tired (this word is very rarely used).
- Weary: Feeling or showing tiredness.
- Lethargic: Lacking energy or enthusiasm.
Adjective
- showing sustained enthusiastic action with unflagging vitality
- an indefatigable advocate of equal rights
- a tireless worker
- unflagging pursuit of excellence