Synonyms of guaranteed

guaranteed

verb

past tense of guarantee

1

as in assured

to assume responsibility for the satisfactory quality or performance of

the shop will guarantee all work done on the car for 30 days

Synonyms & Similar Words

• assured
• bonded
• certified
• warranted
• pledged
• guarantied
• contracted
• vowed
• testified (to)
• insisted
• stipulated
• insured
• declared
• attested
• undertook
• authenticated
• adhered
• swore
• asserted
• vouched (for)
• witnessed
• averred
• covenanted
• plighted
• avouched
• avowed

2

as in ensured

to make sure, certain, or safe

I can guarantee that you'll feel better after using my product for 30 days

Synonyms & Similar Words

• assured
• ensured
• secured
• insured
• guarantied
• promised
• cinched
• iced
• certified
• vouched
• warranted
• attested
• pledged
• witnessed
• swore

Antonyms & Near Antonyms

• undermined
• weakened
• enfeebled

3

as in declared

to state clearly and strongly

I guarantee that this movie is better than the last one in the series

Synonyms & Similar Words

• declared
• asserted
• announced
• proclaimed
• professed
• affirmed
• said
• averred
• explained
• laid down
• avowed
• justified
• advertised
• assured
• promoted
• defended
• convinced
• upheld
• pronounced
• avouched
• stressed
• emphasized
• publicized
• boosted
• advocated
• persuaded
• advanced
• championed
• accented
• accentuated
• plugged
• underlined
• underscored
• blazed
• supported
• called
• reaffirmed
• rationalized
• espoused
• reasserted

Antonyms & Near Antonyms

• minimized
• ignored
• neglected
• disregarded
• understated
• overlooked

Example Sentences

Recent Examples of guaranteed

Fee’s survival will depend on many things, some of which remain in question at the book’s end; nothing about his future feels guaranteed. — Garth Greenwell, New Yorker, 6 Oct. 2026

Despite his success, Smerud has not publicly been guaranteed anything beyond this season; officially, the team is still searching for a new manager. — Kevin Baxter, Los Angeles Times, 6 Oct. 2026

Guests have guaranteed access—and you're guaranteed to make friends with the bartenders. — Condé Nast, Condé Nast Traveler, 6 Oct. 2026

There is no clear optimal dose of movement that is guaranteed to boost creativity, but Strayer says that cognitive benefits appear to begin after about three sessions per week of 30 to 60 minutes of activity. — Amanda Loudin, Scientific American, 5 Oct. 2026

The newspaper reports that Koons plans to invest the proceeds into his own notoriously resource-intensive art practice and that the house has guaranteed the artist a minimum price. — Brian Boucher, ARTnews.com, 5 Oct. 2026

Eligible businesses could apply for loans guaranteed by the Small Business Administration, with additional requirements for those seeking loan forgiveness. — Paula Wethington, CBS News, 29 Sep. 2026

Were there a Mount Rushmore for sneakers, the Nike Air Force 1 would be guaranteed one of its four slots. — Olivia Cigliano, Footwear News, 28 Sep. 2026

For California drivers, that means relief at the pump is far from guaranteed. — Sacbee.com, 28 Sep. 2026