assiduous

Summary

Episode Overview

Podcast: Merriam-Webster's Word of the Day
Episode: “Assiduous”
Date: June 21, 2026
Host: Peter Sokolowski

On this episode, Merriam-Webster’s Peter Sokolowski explores the meaning, context, and usage of the word "assiduous." The episode provides listeners with nuanced definitions, memorable examples, and fascinating etymology.

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Key Discussion Points & Insights

Defining "Assiduous"

• Word: Assiduous
• Spelling: A-S-S-I-D-U-O-U-S
• Part of Speech: Adjective
• Definition: A formal word meaning “showing great care, attention, and effort.”
• Tone: Slightly more forceful than “careful,” conveying persistent or tireless dedication.

“Assiduous is a formal word that means showing great care, attention, and effort.” — Peter Sokolowski [00:33]

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Example of Usage

• Literary Example:

  • From Work in Progress, Confessions of a Busboy, Dishwasher, caddy, usher, Factory worker, Bank teller, Corporate Tool, and Priest by James Mar.
  • “My mom was also assiduous about what we would today call food safety—avoiding anything that could possibly cause illness, especially raw meat. Well done was the norm for everything, and anything that could possibly go bad was kept in the fridge.”
    — Quoted by Peter Sokolowski [00:44]

  This example illustrates someone showing diligence and persistent care in a daily practice (food safety).

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Distinction from Similar Words

• Comparison:
  • "Careful" vs. "Assiduous"
  • While “careful” can be used in many instances, “assiduous” adds an element of persistence, doggedness, or tireless focus.
  • “It’s got a bit more umph than careful in that it suggests a dogged or tireless persistence.” — Peter Sokolowski [01:02]
• Contexts:
  • Used in instances that involve long-term, sustained effort, such as “assiduous research,” “assiduous training,” or “assiduous preparations.”

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Etymology

• Origin:
  • From Latin verb “assidere,” meaning “to sit beside.”
  • The etymology fittingly suggests the patience and consistency required to “sit with a task for a long time.”

    “This idea is fitting, given that assiduous comes from the Latin verb assidere, meaning to sit beside.” — Peter Sokolowski [01:36]

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Notable Quotes & Moments

• On the nuance of ‘assiduous’:

  “If you are assiduous in your efforts or work, research, analysis, training, preparations, etc., it’s implied that you’re in it for the long haul, or that you have the ability to sit with a task or challenge for a considerable amount of time.”
  — Peter Sokolowski [01:19]

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Timestamps for Key Segments

• [00:33] — Introduction and definition of "assiduous"
• [00:44] — Example sentence from James Mar’s book
• [01:02] — Difference between “careful” and “assiduous”
• [01:19] — “In it for the long haul”: contexts and implications
• [01:36] — Latin origin and connection to patience and persistence

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Episode Tone

The tone is educational, clear, and inviting, blending linguistic precision with approachable, real-world examples. Peter Sokolowski gently emphasizes the usefulness of understanding the deeper resonance behind seemingly simple words.

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Conclusion

In this episode, “assiduous” is unpacked as a word that conveys not just care and attention, but the sustained, enduring effort required for long-term tasks. Its Latin roots reinforce its connection to patience and dedication, inspiring listeners to consider the depth of their own diligence.

Transcript

[A]

Foreign. It's the Word of the day podcast for June 21st.

[B]

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[A]

Today's word is assiduous Spelled A S S I D U O U S. Assiduous is an adjective. It's a formal word that means showing great care, attention and effort. Here's the word used in a sentence from Work in Progress, Confessions of a Busboy, Dishwasher, caddy, usher, Factory worker, Bank teller, Corporate Tool, and Priest By James Mar My mom was also assiduous about what we would today call food safety avoiding anything that could possibly cause illness, especially raw meat. Well done was the norm for everything, and anything that could possibly go bad was kept in the fridge. While assiduous means showing great care, attention and effort, and in some situations may be an appropriate substitute for the word careful, it is. It's got a bit more umph than careful in that it suggests a dogged or tireless persistence. If you are assiduous in your efforts or work, research, analysis, training, preparations, etc. For example, it's implied that you're in it for the long haul, or that you have the ability to sit with a task or challenge for a considerable amount of time. This idea is fitting given that assiduous comes from the Latin verb accidere, meaning to sit beside. With your word of the day, I'm Peter Sokolowski.

[C]

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