easy
The tiny bug was harmless.
What does Harmless mean?
Harmless means not dangerous.
Dictionary definition
Harmless means not likely to cause damage, hurt, or trouble.
Example sentences
Harmless in a sentence
medium
The joke seemed harmless because it did not hurt anyone's feelings.
hard
A harmless mistake can still be corrected with care.
Writing practice
Ready to write your own? Study the examples, then practice harmless in a sentence with Sentence Builder checklist feedback.
Quick practice
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Practice the meaning of Harmless
Answer three quick questions about its meaning and related words.
Question 1 of 3
Practice 1
What does harmless mean?
Not likely to cause harm matches the meaning of the word.
Practice 2
Which word is closest in meaning to harmless?
Harmless and safe both suggest little danger.
Practice 3
Which word is an opposite or strong contrast for harmless?
Harmful is the opposite of harmless.
Practice complete
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You completed 3 questions.
Pronunciation coach
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Harmless
Voice settings
Sounds like
harm · lis · strongest beat: harm
Tap each sound part, then blend the whole word together.
Learn
WordHarmless.
Partadjective.
MeaningHarmless means not dangerous.
ExampleExample: The tiny bug was harmless.
Word breakdown
2 syllables. Say each part, then blend the word.
- Syllables
- harm · lis
- Strongest beat
- harm
- Ending
- lis
- Tip
- Put a little extra energy on harm.
Your turn
Say Harmless
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Ready when you are.
Nice work—you practiced harmless.
Synonyms
Words like Harmless
Antonyms
Opposite words
Synonym practice
Want to practice harmless synonyms in context? Try a Synonym Search question like "The little ladybug was harmless on the leaf," then compare close word choices. Practice harmless synonyms.
Word family
Harmless word family
Related words
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Student support
Understand Harmless
Hint for students
Harmless means not dangerous.
Common mix-up
Harmless is not the same as harmful. Harmless means harmless means not dangerous.
Try it in class or at home
Read this model sentence: The joke seemed harmless because it did not hurt anyone's feelings. Clue words: not, joke, seemed. Underline clue words that show why harmless fits instead of harmful. Now write one new sentence that shows harmless without using the word harmless. Ask: Does my sentence clearly show harmless?
Teacher prompt
Ask students to explain this model sentence: "The joke seemed harmless because it did not hurt anyone's feelings." Why does harmless fit better than harmful?
Learning activities
Practice Harmless and explore more word games
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