Synonyms for "dull"

13 kid-friendly synonyms for dull, sorted by grade level (K-2, 3-5, 6-8).

What does "dull" mean?

The word dull is an adjective that means: not sharp, or not interesting.

Example: "The pencil is dull."

Grade K–2Easy synonyms for dull

Younger kids can use these in place of "dull":

Grade 3–5Stronger words for dull

For elementary writers ready to add precision and variety to their vocabulary:

Grade 6–8Middle-school vocabulary for dull

Tier 2 academic alternatives — useful for essays, persuasive writing, and standardized tests:

Opposites of dull (antonyms)

Words that mean the opposite of dull:

See the full dull antonyms page →

FAQ — synonyms for dull

What is a good synonym for dull in a kid's writing?
For K-2 writers, try boring. For older students, "tedious" reads more naturally in school writing.
How many synonyms does dull have?
We list 13 grade-appropriate synonyms for dull across three reading levels. Adults' thesauruses include dozens more, but most aren't useful for K-8 vocabulary.
Is dull a noun, verb, or adjective?
In this entry, dull is used as an adjective.

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