| adjuvant(noun, spur, goad, incentive, impetus) | |
| advancing(adjective, energetic, daring, resourceful, innovative) | |
| adventurous(adjective, energetic, daring, resourceful, innovative) | |
| affluential(whip, presence, player) | |
| aggressive(adjective, energetic, daring, resourceful, innovative) | |
| agitator(noun, spur, goad, incentive, impetus) | |
| aholic | |
| alert(adjective, energetic, daring, resourceful, innovative) | |
| ambitious(adjective, energetic, daring, resourceful, innovative) | |
| ambitious person | |
| animator | |
| arouser | |
| aspiring(adjective, energetic, daring, resourceful, innovative) | |
| audacious(adjective, energetic, daring, resourceful, innovative) | |
| auto | |
| automobile | |
| ball of fire(noun, device) | |
| bold(adjective, energetic, daring, resourceful, innovative) | |
| busy bee | |
| busy person |
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| APA | Smart Define. (2015). spark plug thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/spark_plug/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "spark plug thesaurus" https://smartdefine.org/spark_plug/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, spark plug thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/spark_plug/thesaurus/synonyms>. |
| MLA | Smart Define. "spark plug thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/spark_plug/thesaurus/synonyms> |