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Definitions

in check

ADJECTIVE
restrained
Synonyms
STRONGEST
discreet laid-back mild muted reasonable reticent subdued tasteful unobtrusive
STRONG
chilled controlled cool moderate plain retiring shrinking steady withdrawn
WEAK
bottled-up calm and collected conservative corked up in charge inobtrusive on a leash self-controlled soft temperate unaffable undemonstrative under control under wraps unexcessive unexpansive unextreme uptight
Antonyms
STRONGEST
communicative
STRONG
extroverted friendly outgoing
WEAK
assured bold confident

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The bottom line: Keep your pessimism in check.

From MarketWatch • Apr. 6, 2026

California built its tradition of open government — including for citizen boards that set the rules for such functions as automotive repair and security guard licensing — precisely to keep well-funded corporate interests in check.

From Los Angeles Times • Apr. 1, 2026

The brown butter lends a nutty undertone and caramel depth, a quiet bitterness that keeps the sweetness in check.

From Salon • Mar. 31, 2026

For example, follistatin effectively releases the hand brake on muscle development by blocking myostatin, the protein that normally keeps it in check.

From Slate • Mar. 30, 2026

While waiting for the manuscript to arrive, I kept my nerves in check by writing up my ideas on bacterial sexuality.

From "Double Helix" by James D. Watson