Difficulty vs Obstacle

When to use each in English, with meaning, register, and examples.

Difficulty

Top 2,000 (common)B1noun

Obstacle

Top 2,000 (common)B2noun
 DifficultyObstacle
Pronunciation🇬🇧 /["/ˈdɪfɪkəlti/"]/🇺🇸 /["/ˈdɪfɪkəlti/"]/🇬🇧 //ˈɒbstəkl//🇺🇸 //ˈɑbstəkl//
MeaningHow hard something is.Something that makes it difficult to do something.
ExampleThe difficulty of the exam surprised many students.He faced many obstacles during his journey to success.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)
CEFR levelB1B2
Part of speechnounnoun
Collocationsconsiderable, enormous, extreme, level, encounter, experience, face, arise, lie (in something), despite a/​the difficulty, in difficulty, with difficulty, considerable, enormous, extreme, level, encounter, experience, face, arise, lie (in something), despite a/​the difficulty, in difficulty, with difficulty, considerable, enormous, extreme, level, encounter, experience, face, arise, lie (in something), despite a/​the difficulty, in difficulty, with difficultyface an obstacle, overcome an obstacle, see an obstacle
Antonymseasy, simple, effortlessadvantage, help, facilitator
Common mistakesConfused with 'difficult' (adjective) vs. 'difficulty' (noun), Using 'difficulties' when referring to multiple challenges, Overgeneralizing to describe feelings instead of tasksConfusing with 'obstacle course' which is a specific kind of challenge., Using 'obstacles' when discussing non-physical challenges like fears or emotions., Mixing it up with 'obstruction', which often has legal connotations.
Usage notesOften used to describe challenges in tasks, tests, or activities. Suitable in both casual and academic contexts. Avoid using in overly informal situations.Used in contexts where something hinders progress or achievement. Typically neutral; avoid in overly casual contexts.

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Difficulty

Frequently asked questions: Difficulty vs Obstacle

What's the difference between Difficulty and Obstacle?

Difficulty: How hard something is. Obstacle: Something that makes it difficult to do something.

Which is more advanced: Difficulty and Obstacle?

Obstacle is the highest level, at B2, on the CEFR scale.

Are Difficulty and Obstacle the same CEFR level?

Difficulty: B1, Obstacle: B2 on the CEFR scale.

What part of speech are Difficulty and Obstacle?

Difficulty: noun, Obstacle: noun.

Can you show an example of each?

Difficulty: The difficulty of the exam surprised many students. Obstacle: He faced many obstacles during his journey to success.

Can I use Difficulty and Obstacle interchangeably?

Not always. Difficulty and Obstacle are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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