Simple meaning
What does Serious mean?
Serious means important and needing careful thought.
Dictionary definition
Important and needing careful attention; not playful in tone.
Example sentences
Serious in a sentence
easy
This is a serious safety rule.
medium
He gave a serious answer to the question.
hard
A serious mistake can be fixed faster when people act honestly.
Synonyms
Words like Serious
importantUse when something truly matters.
graveUse for very serious or heavy situations.
Antonyms
Opposite words
playfulUse when tone is light and joking.
trivialUse when something has little importance.
Word family
Serious word family
Base word
serious
adverb
seriously
In an important or thoughtful way.
Related words
Explore related words
Quick practice
Try Serious
Practice 1
Which meaning fits serious?
Serious situations require careful thought and responsible action.
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Learning paths
- Define the Word Hive for word meanings.
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- Buzz Between for homophones and listening.
- Hive Builder for roots, prefixes, and suffixes.