Definitions

rein in

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check v.
control v.
curb v.
slow v.
stop v.

VERB

check

Synonyms

STRONGEST

arrest control curb halt prevent reduce stop

STRONG

baffle bar bit bottleneck bridle checkmate choke circumvent constrain counteract delay discourage foil frustrate harness hold impede inhibit interrupt limit moderate neutralize obstruct obviate pause preclude rebuff repress repulse retard snub squelch stay suppress tame terminate thwart withhold

WEAK

cut short hold back hold down hold in keep back nip in the bud play for time slacken pace slow down

Antonyms

STRONGEST

aid allow assist continue encourage help let go

STRONG

abet advance approve facilitate forward free permit release

WEAK

expedite indulge liberate

VERB

control

Synonyms

STRONGEST

adjust check contain limit regulate

STRONG

awe bridle collect compose constrain cool corner cow monopolize quell repress restrain smother subdue

WEAK

simmer down

Antonyms

STRONGEST

disorganize

STRONG

agitate allow arouse disperse distribute free let go release scatter share start

WEAK

abandon chance forsake give up jump in relinquish renounce resign risk rush

VERB

curb

Synonyms

STRONGEST

constrain contain control hamper hinder impede inhibit restrain suppress tame

STRONG

abstain bit bridle check deny fetter hobble hog-tie hold down ice leash manacle moderate muzzle refrain retard scrub shackle subdue tie withhold

WEAK

bottle up box in bring to screeching halt cool down cool off entrammel hold back hold in keep lid on keep tight rein on send up tie up

Antonyms

STRONGEST

advance aid allow assist encourage facilitate forward free help let go permit promote release

STRONG

go ahead incite indulge liberate loose loosen

WEAK

foster

VERB

slow

Synonyms

STRONGEST

abate curb curtail decelerate decrease diminish hinder impede lag lessen moderate reduce relax retard slacken stall temper

STRONG

brake check choke detain loiter mire postpone procrastinate qualify quiet reef regulate stunt

WEAK

anchor it back-water bog down cut back cut down ease off ease up embog hit the brakes hold back hold up keep waiting let down flaps lose speed lose steam reduce speed set back wind down

Antonyms

STRONGEST

advance agitate aid allow assist develop encourage enlarge excite expand extend facilitate forward further grow help increase lengthen prolong push raise strengthen

STRONG

accelerate do expedite liberate release

VERB

stop

Synonyms

STRONGEST

arrest avoid bar block break check close disrupt intercept interrupt stall stay stem suspend

STRONG

bottle choke clog congest fill fix forestall frustrate gag hinder hush impede muzzle obstruct occlude plug repress restrain seal silence staunch still stopper

WEAK

choke off cut off put a stop to shut down shut off shut out throw over turn off ward off

Antonyms

STRONGEST

abet advance aid allow cause continue encourage go help let go open permit release

STRONG

assist clear disturb facilitate forward free liberate promote support unblock

WEAK

begin start

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.

See Examples For:

rein in

Since my longtime therapist’s behavioral approach had already helped rein in my personality enough to quit smoking and drinking, and marry a great guy, I decided to try his suggestion.

From Slate ● Sep. 27, 2026

Amodei also said that any action to rein in AI should be done "without sacrificing commercial advantage".

From BBC ● Sep. 15, 2026

The United Nations rights chief called Monday for countries and "frontier" artificial intelligence companies to act urgently to rein in a technology he warned posed "unprecedented risks".

From Barron's ● Sep. 14, 2026

Bills advanced by the Senate and Assembly aim to rework California’s climate spending, close an environmental review loophole and rein in electricity rates, among other efforts.

From Los Angeles Times ● Sep. 2, 2026

I cheered as Kekeli’s side won, trying to rein in my delight as I watched her jubilate.

From "Flying Through Water" by Mamle Wolo

rein in

Example Sentences

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