Arduous

//ˈɑː.djuː.əs//

Synonyms for "arduous" (104 found)

Ranked by relevance and common usage.

Closest matches (21)

backbreaking burdensome difficult abrupt abstruse brutal complex complicated critical crushing delicate demanding difficile effortful energetic exacting exhausting

Adjective(1 words)

backbreaking

Adjective(3 words)

burdensome demanding exhausting

Strong matches (31)

fatiguing forced formidable grueling hairy hard hard earned hard fought heavy hefty herculean intricate jawbreaking killing knotted knotty labored laborious mean murderous

Show 2 more words

no picnic not easy

Adjective(4 words)

fatiguing laborious murderous nimious

Adjective(5 words)

grueling gruelling hard heavy laborious

Related words (52)

onerous operose oppressive painful picnic precipitate precipitous punishing rigorous rocky rough rugged serious set with thorns severe sheer sideling spiny steep stickle

Show 20 more words

stiff strained straining strenuous taxing terrible thorny ticklish tight tiring toilsome tough tricksy tricky troublesome trying uphill vigorous wearisome wicked

Adjective(7 words)

onerous rocky strenuous struggleful strugglesome uphill wearisome

Adjective(5 words)

operose punishing straining strenuous toilsome

Related word relations

OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.

5 relation types

Synonyms

3 entries

backbreaking burdensome straining

Related terms

1 entries

arduity

derived

3 entries

arduously arduousness unarduous

related to

8 entries

ardent arduity burning difficult endurance energy exhausting traverse

similar

4 entries

difficult effortful hard

Translations

82 translations across 25 languages.

Arabic

1 entries

شَاق adj (needing or using up much energy)

Bulgarian

4 entries

мъчен adj (needing or using up much energy)
недостъпен adj (hard to climb or traverse)
стръмен adj (hard to climb or traverse)
труден adj (needing or using up much energy)

Catalan

2 entries

ardu adj (needing or using up much energy)
ardu adj (hard to climb or traverse)

Chinese Cantonese

2 entries

艱巨 /艰巨 adj (needing or using up much energy)
艱苦 /艰苦 adj (needing or using up much energy)

Chinese Mandarin

2 entries

艱巨 /艰巨 adj (needing or using up much energy)
艱苦 /艰苦 adj (needing or using up much energy)

Danish

2 entries

anstrengende adj (needing or using up much energy)
besværlig adj (needing or using up much energy)

Dutch

4 entries

moeilijk te beklimmen adj (hard to climb or traverse)
moeizaam adj (needing or using up much energy)
steil adj (hard to climb or traverse)
uitputtend adj (needing or using up much energy)

Finnish

4 entries

ankara adj (needing or using up much energy)
jyrkkä adj (hard to climb or traverse)
rasittava adj (needing or using up much energy)
työläs adj (needing or using up much energy)

French

1 entries

ardu adj (needing or using up much energy)

German

4 entries

anstrengend adj (needing or using up much energy)
beschwerlich adj (needing or using up much energy)
erschöpfend adj (needing or using up much energy)
mühsam adj (needing or using up much energy)

Hungarian

4 entries

fáradságos adj (needing or using up much energy)
fárasztó adj (needing or using up much energy)
megerőltető adj (needing or using up much energy)
meredek adj (hard to climb or traverse)

Irish

1 entries

maslach adj (needing or using up much energy)

Italian

2 entries

arduo adj (needing or using up much energy)
arduo adj (hard to climb or traverse)

Japanese

2 entries

苦しい adj (needing or using up much energy)
難儀な adj (needing or using up much energy)

Korean

2 entries

고난의 adj (needing or using up much energy)
힘드는 adj (needing or using up much energy)

Norwegian

3 entries

slitsom adj (needing or using up much energy)
vanskelig adj (needing or using up much energy)
vanskelig adj (hard to climb or traverse)

Persian

2 entries

دشوارگذر adj (hard to climb or traverse)
صعبالعبور adj (hard to climb or traverse)

Polish

2 entries

arcytrudny adj (needing or using up much energy)
uciążliwy adj (needing or using up much energy)

Portuguese

2 entries

árduo adj (needing or using up much energy)
árduo adj (hard to climb or traverse)

Russian

4 entries

круто́й adj (hard to climb or traverse)
напряжённый adj (needing or using up much energy)
тру́дный adj (needing or using up much energy)
труднодосту́пный adj (hard to climb or traverse)

Serbo-Croatian

1 entries

mukotrpan adj (needing or using up much energy)

Spanish

4 entries

arduo adj (needing or using up much energy)
arduo adj (hard to climb or traverse)
dispendioso adj (needing or using up much energy)
riguroso adj (needing or using up much energy)

Swedish

4 entries

ansträngande adj (needing or using up much energy)
arbetsam adj (needing or using up much energy)
avancerad adj (needing or using up much energy)
besvärlig adj (needing or using up much energy)

Tajik

2 entries

душворгузар adj (hard to climb or traverse)
саъбулубур adj (hard to climb or traverse)

Turkish

4 entries

ağır adj (needing or using up much energy)
gayretli adj (needing or using up much energy)
güç adj (needing or using up much energy)
sarp adj (hard to climb or traverse)

Sample sentences

16 total sentences available.

Tatoeba + Wiktionary

She went through a long and arduous vocational course.

Source: tatoeba (2462875)

Running the Inca Trail near Machu Picchu can be arduous.

Source: tatoeba (2462881)

The situation is becoming arduous.

Source: tatoeba (2996674)

They call it an English grammar book; I call it an arduous, soul-draining and depressing experience pushing the limits of human patience.

Source: tatoeba (3068275)

Showing 4 of 16 available sentences.

More for "arduous"

Meaning Antonyms Sentences Word Type

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.