Synonyms of difficult

difficult

adjective

ˈdi-fi-(ˌ)kəlt 

1

as in challenging

requiring considerable physical or mental effort

difficult questions on the exam that required analytical thinking

Synonyms & Similar Words

• challenging
• tough
• hard
• rigorous
• demanding
• formidable
• complicated
• heavy
• rough
• effortful
• arduous
• rugged
• severe
• painful
• strenuous
• exhausting
• tall
• laborious
• sweaty
• uphill
• complex
• testing
• grueling
• intricate
• herculean
• problematic
• exacting
• problematical
• backbreaking
• toilsome
• killer
• murderous
• serious
• stiff
• gruelling
• tricky
• annoying
• elusive
• stressful
• involved
• troublesome
• trying
• hellacious
• pick-and-shovel
• stubborn
• grim
• brutal
• onerous
• tight
• burdensome
• oppressive
• thorny
• abstract
• moiling
• insoluble
• abstruse
• opaque
• irksome
• Augean
• bruising
• hairy
• bothersome
• recondite
• strict
• ticklish
• labored
• knotty
• vexatious
• distressing
• cruel
• spiny
• stringent
• taxing
• grievous
• inhuman

Antonyms & Near Antonyms

• easy
• simple
• light
• soft
• cheap
• effortless
• clear
• undemanding
• facile
• manageable
• elementary
• mindless
• doable
• achievable
• uncomplicated
• smooth
• gentle
• comforting
• painless
• soothing
• relaxed
• accessible
• friendly
• user-friendly
• idiotproof

2

as in tough

requiring exceptional skill or caution in performance or handling

it's a difficult situation when two of your friends are quarreling and you're trying to stay out of it

Synonyms & Similar Words

• tough
• sensitive
• problematic
• problematical
• complicated
• tricky
• hard
• sticky
• delicate
• problem
• complex
• painful
• thorny
• serious
• touchy
• nasty
• hairy
• ticklish
• knotty
• catchy
• dodgy
• spiny
• prickly
• tricksy
• troublesome
• intricate
• involved
• vexing
• abstruse
• abstract
• stressful
• stubborn
• recondite
• inconvenient
• worrisome
• vexatious
• onerous
• burdensome
• demanding
• troublous
• exhausting
• oppressive
• scabrous
• exacting
• importunate
• discommoding

Antonyms & Near Antonyms

• easy
• simple
• manageable
• straightforward
• uncomplicated
• painless
• effortless
• unproblematic
• undemanding

Try This Instead

For

Try This

a difficult task

a complicated task

a formidable task

a daunting task

an enormous task

a challenging task

a difficult time

a hard time

a stressful time

a frustrating time

a tough time

a troubled time

a difficult subject

an uncomfortable subject

a tricky subject

a delicate subject

a painful subject

a sensitive subject

Synonym Chooser

How is the word difficult different from other adjectives like it?

The words arduous and hard are common synonyms of difficult. While all three words mean "demanding great exertion or effort," difficult implies the presence of obstacles to be surmounted or puzzles to be resolved and suggests the need of skill or courage.

the difficult ascent of the mountain

When would arduous be a good substitute for difficult?

While in some cases nearly identical to difficult, arduous stresses the need of laborious and persevering exertion.

the arduous task of rebuilding

When could hard be used to replace difficult?

In some situations, the words hard and difficult are roughly equivalent. However, hard implies the opposite of all that is easy.

farming is hard work

Example Sentences

Recent Examples of difficult

The profit model for these outlets has also proven difficult to sustain as once-steady advertising revenue buckles, leading many companies to consolidate or restructure. —Alain Sherter, CBS News, 9 June 2025

Numerous international parallels are not difficult to make. —Samantha Bergeson, IndieWire, 9 June 2025

Some of them are here, probably under difficult situations. —Michael Dorgan, FOXNews.com, 9 June 2025

These connections are difficult to make from within, but consultants are trained to see across boundaries. —Dr. Diane Hamilton, Forbes.com, 30 May 2025