Words That Start With -ly for Better Writing

If you want to write more clearly and sound more natural, words that start with -ly are some of the most useful tools you can learn. These words are almost always adverbs, and they help you describe how an action happens, how often something occurs, or the degree of a quality. Using them correctly makes your writing more precise and your speaking more fluent. This guide gives you a direct answer to how these words work, with practical examples, common mistakes, and short practice support for real writing, email, study, or everyday conversation.

Quick Answer: What Are Words That Start With -ly?

Words that start with -ly are adverbs formed by adding -ly to an adjective. For example, quick becomes quickly, and careful becomes carefully. They modify verbs, adjectives, or other adverbs to give more detail. In writing, they help you show how something is done, when it happens, or to what extent. Most of these words are used in both formal and informal English, but some fit better in emails or conversations than others.

How to Use -ly Words in Writing

Using -ly words correctly can improve your writing in three main ways: describing actions, adding tone, and showing frequency or degree. Below is a breakdown of the most common types.

1. Describing Actions (Manner Adverbs)

These words tell how an action is performed. They are the most common -ly words and work well in both emails and conversation.

• Quickly – She finished the report quickly.
• Carefully – Please read the instructions carefully.
• Politely – He asked for help politely.

Formal vs. Informal: In formal writing (like business emails), use words like diligently or thoroughly. In casual conversation, quickly or nicely are fine.

2. Adding Tone or Attitude

Some -ly words show the speaker’s attitude or the tone of the message. These are especially useful in emails to sound professional or friendly.

• Honestly – Honestly, I think this is the best option.
• Fortunately – Fortunately, the meeting was rescheduled.
• Unfortunately – Unfortunately, we cannot accept late submissions.

Nuance: Honestly can sound direct or even blunt in conversation, so use it carefully. Fortunately and Unfortunately are neutral and work in most contexts.

3. Showing Frequency or Degree

These words tell how often or how much something happens. They are common in everyday English.

• Usually – I usually check my email in the morning.
• Nearly – The project is nearly complete.
• Absolutely – That is absolutely correct.

Context: Absolutely is strong and works well in both formal and informal settings. Nearly is more common in writing than in casual speech.

Comparison Table: Common -ly Words by Context

Natural Examples in Context

Here are sentences that show how -ly words sound in real writing and conversation.

• Email context: “Please review the attached document carefully and reply promptly.”
• Conversation context: “I honestly don’t know what happened. He left suddenly.”
• Study context: “She studied diligently for the exam and passed easily.”
• Everyday context: “We usually eat dinner at seven, but tonight we ate early.”

Common Mistakes with -ly Words

Even advanced learners make these errors. Here are the most frequent ones and how to fix them.

Mistake 1: Using -ly Words with Linking Verbs

Do not use an -ly adverb after linking verbs like be, seem, feel, or look. Use an adjective instead.

• Incorrect: She feels badly about the mistake.
• Correct: She feels bad about the mistake.
• Explanation: Feel is a linking verb here, so use the adjective bad.

Mistake 2: Overusing -ly Words

Using too many -ly words can make writing sound cluttered. Choose one strong adverb instead of several.

• Wordy: She quickly and carefully and efficiently finished the task.
• Better: She finished the task efficiently.

Mistake 3: Confusing Adjectives and Adverbs

Some words have both an adjective and an adverb form. Do not mix them up.

• Incorrect: He ran quick to the store.
• Correct: He ran quickly to the store.

Better Alternatives: When to Use -ly Words

Sometimes a single -ly word is better than a longer phrase. Here are common replacements.

• Instead of: “in a careful way” → Use: carefully
• Instead of: “in a polite manner” → Use: politely
• Instead of: “without delay” → Use: immediately or promptly
• Instead of: “most of the time” → Use: usually

When to use it: Use -ly words when you want to be specific without adding extra words. In formal writing, they make your sentences tighter. In conversation, they help you sound natural.

Mini Practice: Test Your Understanding

Choose the correct -ly word for each sentence. Answers are below.

1. She completed the assignment _____. (quick / quickly)
2. He spoke _____ to the customer. (polite / politely)
3. The team _____ meets on Fridays. (usual / usually)
4. I _____ believe this is the right decision. (honest / honestly)

Answers

1. quickly – “She completed the assignment quickly.”
2. politely – “He spoke politely to the customer.”
3. usually – “The team usually meets on Fridays.”
4. honestly – “I honestly believe this is the right decision.”

Frequently Asked Questions

1. Can I use -ly words at the beginning of a sentence?

Yes. Words like Fortunately, Honestly, and Usually often start sentences to set the tone. For example: “Fortunately, we arrived on time.”

2. Are all -ly words adverbs?

Most are, but some adjectives also end in -ly, such as friendly, lovely, and lonely. These are not adverbs. For example: “She is a friendly person.” (adjective)

3. How do I know if a word needs -ly?

If you are describing a verb, use the -ly form. If you are describing a noun, use the adjective. Compare: “He is a careful driver.” (adjective) vs. “He drives carefully.” (adverb)

4. Is it okay to use -ly words in casual conversation?

Yes, but choose simpler ones. Words like quickly, nicely, and usually are common in everyday speech. Avoid very formal ones like diligently unless you are in a professional setting.

Final Tips for Better Writing

To use -ly words effectively, focus on clarity. Do not add them just to sound fancy. Instead, ask yourself: Does this word help the reader understand how, when, or to what degree? If yes, use it. If not, leave it out. Practice by reading your sentences aloud and checking if the -ly word fits naturally. For more help with word lists, visit our Writing Word Lists section or explore Beginner Word Lists for simpler terms. If you have questions, check our FAQ page or contact us directly.