Looking for a difficult synonym usually starts with hard, tough, challenging and tricky, but the best fit depends on what kind of difficult you mean. A hike can be grueling, a puzzle can be complicated, a year can be trying and a customer can be demanding.
The sections below split those meanings apart and show how strong each word sounds.
Swatch at a glance
Best swaps
hard, tough, challenging, tricky, demandingPart of speech
AdjectiveMost formal
arduous, onerous, formidableMost casual
tough, rough, a painStrongest
grueling, backbreaking, formidableAntonyms
easy, simple, straightforwardWatch out
Complex means many connected parts. It does not always mean hard, and complicated is the more negative of the two.
Five kinds of difficult
| Kind | Swaps | Sentence |
|---|---|---|
| Effort | hard, tough, demanding, strenuous | Moving house is strenuous work. |
| Thinking | complicated, tricky, baffling | The tax form was baffling. |
| Hard times | trying, rough, stressful | It has been a rough month. |
| People | stubborn, uncooperative, fussy | The landlord was uncooperative about repairs. |
| Delicate topics | awkward, sensitive, thorny | Pay is a sensitive subject at work. |
Tricky up to grueling
The chips run from mild to strong. Tricky means a small catch you can work out. Challenging has an upbeat ring, hinting that the struggle pays off, which is why job ads love it. Hard is the plain middle. Arduous means long and tiring. Grueling means it wears you down, body and mind.
Choose by the reader's feeling: a manager may call a task challenging, while the person doing it calls it grueling.
Difficult synonym swaps, line by line
- A difficult exam becomes a tough exam.
- The instructions are difficult to follow becomes the instructions are confusing.
- A difficult climb to the top becomes an arduous climb to the top.
- She had a difficult childhood becomes she had a troubled childhood.
- He is difficult to work with becomes he is demanding to work with, or uncooperative if he refuses to help.
- That is a difficult question becomes that is a thorny question.
A text to a friend: "Work was so difficult today." Casual speech prefers short words: "Work was rough today" or "Work was a lot today." Both sound like a real person talking.
Describing a hard person kindly
Calling someone difficult can sound like a complaint. In feedback or reviews, try a word that names the behavior instead: demanding (high standards), particular (strong preferences), direct (blunt), stubborn or set in their ways (slow to change). These help the reader know what to expect and are fairer to the person.
Close, but different
Impossible is not a stronger difficult; it means it cannot be done at all. Complex describes structure, and something complex can still be easy to use. Serious is about how bad, not how hard. Challenging as a euphemism can confuse readers who need the plain truth, so pair it with details.
For the noun, visit difficulty synonyms.
Opposites: when it is not hard at all
Easy is the direct opposite. Simple means few parts. Straightforward means no surprises, which suits instructions. Effortless praises skill: she made the dance look effortless. For people, cooperative and accommodating are the opposites. The describing words collection holds more adjectives.
Frequently asked questions
Difficult in formal writing: which word?
Arduous, onerous and formidable are formal. Onerous suits duties and rules, such as an onerous reporting requirement.
Difficult feels too weak. What is stronger?
Grueling, backbreaking and punishing are much stronger. Formidable works for a task or rival that seems almost too much.
Is challenging the same as difficult?
Mostly. Challenging has a positive ring, as if the effort will pay off, so it suits job ads and goal setting.
What is another word for difficult times?
Hard times, trying times and tough times are common. A rough patch is casual and gentle.
What is the opposite of difficult?
Easy, simple and straightforward. For people, use cooperative or easygoing.
How can I describe a difficult person politely?
Demanding, particular or strong-willed sound polite. Each hints at a reason rather than just a complaint.