Synonyms of secure

secure 1 of 2

verb

1

as in to protect

to drive danger or attack away from

sent troops to secure the city

Synonyms & Similar Words

• protect
• defend
• safeguard
• guard
• shield
• keep
• fence
• fend
• prevent
• save
• ward
• bulwark
• preserve
• cover
• stand up for
• screen
• forfend
• conserve
• withstand
• avert
• resist
• oppose
• war
• contend
• fight
• buffer
• picket
• battle
• wall
• palisade

Antonyms & Near Antonyms

• attack
• assault
• assail
• submit
• overrun
• yield
• beset
• cave
• bombard
• storm
• besiege
• capitulate

2

as in to ensure

to make sure, certain, or safe

a retirement account that will help to secure our future

Synonyms & Similar Words

• ensure
• assure
• guarantee
• insure
• guaranty
• ice
• cinch
• promise
• certify
• vouch
• warrant
• witness
• pledge
• attest
• swear

Antonyms & Near Antonyms

• undermine
• weaken
• enfeeble

3

as in to fasten

to put securely in place or in a desired position

candidates for admission are asked to secure a recent photo to their application forms

Synonyms & Similar Words

• fasten
• clamp
• hitch
• anchor
• catch
• fix
• moor
• set
• embed
• entrench
• stuff
• wedge
• implant
• lodge
• ingrain

Antonyms & Near Antonyms

• loose
• loosen
• unfasten
• extract
• pull
• prize
• tear (out)
• unloose
• pry
• wrest
• unloosen
• uproot
• unfix
• yank
• root (out)

4

as in to win

to receive as return for effort

finally secured a job after sending out dozens of applications

Synonyms & Similar Words

• win
• earn
• gain
• reap
• make
• obtain
• garner
• get
• attain
• land
• acquire
• procure
• capture
• realize
• achieve
• carry
• draw
• come by
• bring in
• pull down
• knock down
• accomplish
• bag
• accumulate
• regain
• net
• occupy
• score
• amass
• gross
• clear
• recapture
• annex
• take over
• catch
• rack up
• pick up
• reacquire
• notch (up)
• remake
• reattain

Antonyms & Near Antonyms

• lose
• forfeit
• pay
• give
• grant
• yield
• accord
• surrender
• give up
• relinquish
• part (with)
• hand over

secure

2 of 2

adjective

si-ˈkyu̇r 

1

as in confident

having or showing great faith in oneself or one's abilities

he's so secure about winning the marathon that he's practically spent the prize money

Synonyms & Similar Words

• confident
• assured
• optimistic
• hopeful
• proud
• self-confident
• poised
• self-assured
• composed
• serene
• collected
• smug
• tranquil
• unshaken
• cool
• important
• self-asserting
• unperturbed
• coolheaded
• complacent
• rosy
• recollected
• upbeat
• unshakable
• self-possessed
• sanguine
• self-sufficient
• imperturbable
• vain
• unflappable
• disciplined
• self-affected
• self-reliant
• conceited
• egotistic
• self-pleased
• self-complacent
• nerveless
• pompous
• self-centered
• self-contained
• vainglorious
• egoistic
• prideful
• self-contented
• self-satisfied
• self-applauding
• overweening
• self-poised
• self-important
• self-collected
• self-composed
• unself-conscious
• stuck-up
• self-controlled
• self-conceited
• self-promoting

Antonyms & Near Antonyms

• insecure
• timid
• diffident
• modest
• meek
• humble
• unassertive
• unassuming
• nervous
• unpretentious
• quiet
• self-distrustful
• reserved
• jumpy
• jittery
• self-doubting
• shy
• bashful
• demure
• overmodest
• mousy
• self-reproving
• self-reproachful
• self-critical

2

as in safe

not exposed to the threat of loss or injury

the fortress was thought to be secure against attack

Synonyms & Similar Words

• safe
• alright
• well
• home free
• intact
• unharmed
• all right
• sound
• healthy
• whole
• hale
• unscathed
• uninjured
• unhurt
• scatheless

Antonyms & Near Antonyms

• open
• vulnerable
• insecure
• liable
• subject (to)
• unsafe
• susceptible
• exposed
• threatened
• endangered
• imperiled
• violable
• damaged
• injured
• hurt
• wounded
• harmed
• scathed

3

as in protecting

providing safety

escaped to a secure location

Synonyms & Similar Words

• safe
• protecting
• snug
• protected
• sheltered
• guarding
• safeguarding
• defended
• guarded
• sheltering
• shielded
• impregnable
• unassailable
• shielding
• inviolable
• invulnerable
• unconquerable

Antonyms & Near Antonyms

• dangerous
• hazardous
• risky
• unsafe
• insecure
• threatening
• perilous
• vulnerable
• unprotected
• menacing
• precarious
• uncertain
• unguarded
• treacherous
• parlous
• undefended
• minatory

4

as in reliable

worthy of one's trust

a fund that should provide them with a secure income in their retirement

Synonyms & Similar Words

• reliable
• safe
• responsible
• good
• true
• steady
• solid
• dependable
• trustworthy
• loyal
• sure
• trusty
• calculable
• tried
• strong
• trustable
• devoted
• constant
• faithful
• steadfast
• tried-and-true
• fast
• effective
• honest
• staunch
• sincere
• proven
• sound
• valid
• infallible
• unerring
• validated
• firm
• confirmed
• authenticated
• telling
• unimpeachable
• unquestionable
• true-blue
• faultless
• blameless
• single-minded
• verified
• impeccable
• irreproachable
• attested
• guiltless
• bedrock
• inerrant

Antonyms & Near Antonyms

• unsafe
• uncertain
• unreliable
• untrustworthy
• treacherous
• false
• undependable
• disloyal
• untrue
• uncertain
• fickle
• unfaithful
• traitorous
• perfidious
• questionable
• doubtful
• inconstant
• lying
• dodgy
• dishonest
• problematic
• faithless
• shaky
• hazardous
• risky
• dubious
• deceitful
• shady
• unsound
• suspect
• debatable
• untruthful
• mendacious
• fishy
• disputable
• recreant
• untried
• unconfirmed
• doubtable

Synonym Chooser

How is the word secure distinct from other similar verbs?

Some common synonyms of secure are assure, ensure, and insure. While all these words mean "to make a thing or person sure," secure implies action taken to guard against attack or loss.

sent reinforcements to secure their position

When can assure be used instead of secure?

The words assure and secure can be used in similar contexts, but assure distinctively implies the removal of doubt and suspense from a person's mind.

I assure you that no harm will be done

How does the word ensure relate to other synonyms for secure?

Ensure, insure, and assure are interchangeable in many contexts where they indicate the making certain or inevitable of an outcome, but ensure may imply a virtual guarantee.

the government has ensured the safety of the refugees

When is it sensible to use insure instead of secure?

While the synonyms insure and secure are close in meaning, insure sometimes stresses the taking of necessary measures beforehand.

careful planning should insure the success of the party

Example Sentences

Recent Examples of secure

Verb

In 2013, the city began requiring operators to secure permits for donation boxes. — Ryan MacAsero, Mercury News, 24 July 2026

Some of the measures to rehabilitate the tourism industry include repositioning Cuba as a destination, securing stable electrical supply to tourist hubs, and strengthening supply chains with local producers. — Nora Gámez Torres, Miami Herald, 24 July 2026

Adjective

OpenAI model secretly broke out of secure environment and hacked a competitor. — Jim Edwards, Fortune, 22 July 2026

Christophe Leribault, president of the Louvre Museum, said in an interview with Le Parisien that the jewelry that was not stolen will be placed in a secure vault with no windows that will be created in another part of the museum. — Megan Fahrney, ABC News, 22 July 2026