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Definitions

deciduous

[dih-sij-oo-uhs] / dɪˈsɪdʒ u əs /
ADJECTIVE
short-lived
Synonyms
STRONGEST
brief ephemeral fleeting momentary short-term temporary transitory
WEAK
evanescent fly-by-night fugacious fugitive gone in a heartbeat impermanent of short duration over in a heartbeat passing quick short short-haul short-run transient
Antonyms
STRONGEST
enduring lasting lengthy long long-lived permanent perpetual
WEAK
ethereal
ADJECTIVE
transient
Synonyms
STRONGEST
ephemeral fleeting short-term transitory
STRONG
brief flash fly-by-night flying fugitive passing short temporal volatile
WEAK
changeable emigrating evanescent flitting fugacious going by impermanent insubstantial migrating momentary moving provisional short-lived transmigratory unstable vacating
Antonyms
STRONGEST
enduring lasting lengthy long long-lived permanent perpetual
ADJECTIVE
transient/transitory
Synonyms
WEAK
changeable emigrating ephemeral evanescent flash fleeting flitting fly-by-night flying fugacious fugitive going by impermanent insubstantial migrating momentary moving passing provisional short short-lived short-term temporal transmigratory unstable vacating volatile
Antonyms
WEAK
enduring incessant lasting long-lasting neverending permanent persistent undying

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.

In Gramsh, the municipality is exploring options to alternate pines with other trees, especially deciduous species.

From Barron's • Oct. 11, 2025

They planted a Blue Beech, a small deciduous tree native to eastern North America and known for its bright autumn leaves.

From BBC • May 26, 2025

"With increasing temperatures and wildfire activity, we're seeing increased growth of bigger, deciduous shrubs," Welch said, whose team studied five different alpine tundra sites for the research, which appears in Arctic, Antarctic, and Alpine Research.

From Science Daily • Apr. 16, 2024

The naturalist named the tall deciduous tree after Beagle captain Robert Fitzroy.

From Salon • Mar. 15, 2024

He planned also to coat the beach with fallen oak and maple leaves to signify the fact that Columbus landed in autumn, even though live palms and dead deciduous leaves were not precisely compatible.

From "The Devil in the White City" by Erik Larson

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.