Synonyms of thinned

thinned 1 of 2

adjective

1

as in polluted

containing foreign or lower-grade substances

genuine maple syrup thinned with corn syrup

Synonyms & Similar Words

• polluted
• diluted
• dilute
• contaminated
• mixed
• blended
• weakened
• tainted
• adulterated
• alloyed
• combined
• impure
• compounded
• soiled
• incorporated
• spoiled
• mingled
• corrupted
• dirtied
• unfiltered
• intermixed
• merged
• intermingled
• fouled
• debased
• unclarified
• commingled
• adulterate
• begrimed
• defiled
• sullied
• besmirched
• unrefined
• bemired
• coalesced
• befouled
• maculate
• doctored
• cheapened

Antonyms & Near Antonyms

• pure
• fine
• uncontaminated
• undiluted
• refined
• unmixed
• filtered
• uncut
• purified
• unpolluted
• concentrated
• untainted
• plain
• straight
• unadulterated
• strong
• neat
• unalloyed
• clarified
• ultrapure
• sterile
• ultrarefined
• pasteurized
• uncombined
• sterilized
• clean
• stainless
• immaculate
• unsullied
• spotless
• unsoiled

2

as in thin

not containing very much of some important element

the thinned iced tea that the restaurant serves is barely distinguishable from water

Synonyms & Similar Words

• thin
• diluted
• dilute
• weak
• weakened
• washy
• watery
• adulterated
• watered-down

Antonyms & Near Antonyms

• rich
• strong
• enriched
• fortified
• concentrated
• full-bodied
• condensed
• evaporated

thinned

2 of 2

verb

past tense of thin

as in diluted

to alter (something) for the worse with the addition of foreign or lower-grade substances

thinned the cream with milk but didn't tell anyone

Synonyms & Similar Words

• diluted
• cut
• loaded
• weakened
• infected
• poisoned
• manipulated
• extended
• adulterated
• sophisticated
• spoiled
• laced
• tainted
• degraded
• contaminated
• polluted
• watered down
• soiled
• tempered
• corrupted
• dirtied
• attenuated
• defiled
• sullied
• fouled
• misrepresented
• spiked
• debased
• qualified
• counterfeited
• falsified
• moderated
• tampered (with)
• cheapened
• doctored
• befouled
• faked
• envenomed
• fudged

Antonyms & Near Antonyms

• strengthened
• enriched
• fortified
• reinforced
• fertilized
• supplemented
• augmented
• improved
• richened
• purified
• cleaned
• refined
• filtered
• distilled
• flushed
• purged
• enhanced
• cleansed
• leached
• clarified
• larded
• pasteurized
• decontaminated
• concentrated
• condensed
• compacted
• bettered

Example Sentences

Recent Examples of thinned

Verb

Fire thinned out young trees that couldn’t be supported through California’s frequent droughts and favored large trees with thick bark, which tolerate fire. — Laurie Wayburn, Oc Register, 12 Nov. 2026

Most ferroelectric materials lose that behavior when thinned below about 10 nanometers. — Atharva Gosavi, Interesting Engineering, 7 Nov. 2026

If your mulch is faded or has thinned out, refresh it with new mulch. — Karen Brewer Grossman, Southern Living, 4 Nov. 2026

Callahan’s baritone vocals are thinned out by the weak bass, though. — Mark Knapp, PC Magazine, 3 Nov. 2026

The project also includes two helicopter landing zones, vegetation clearing to reduce wildfire risks and areas where trees and other vegetation have been thinned to help slow the spread of fires and support emergency crews. — Nicole Buss, Sacbee.com, 1 Nov. 2026

For example, healthcare teams with stronger psychological safety before the pandemic carried lower burnout and turnover intent through it, even as resources thinned. — Annette Logan-Parker, Forbes.com, 30 Oct. 2026

Each day, fewer people responded in the group chat, and the ranks thinned. — Alessandra Schade, Vanity Fair, 28 Oct. 2026

Egor Dëmin’s right-leg contusion and Nolan Traoré’s cramps had thinned Brooklyn’s backcourt, leaving Fernández to lean more heavily on a rookie whose playing time was still being carefully managed. — C.j. Holmes, New York Daily News, 28 Oct. 2026