Complicated vs Not so easy
When to use each in English, with meaning, register, and examples.
Complicated
Top 2,000 (common)B2adjective
Not so easy
Top 3,000 (common)
Most common: Complicated
| Complicated | Not so easy | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/ˈkɒmplɪkeɪtɪd/"]/🇺🇸 /["/ˈkɑːmplɪkeɪtɪd/"]/ | 🇬🇧 //nɒt səʊ ˈiːzi//🇺🇸 //nɑt soʊ ˈizi// |
| Meaning | Something that is difficult to understand or deal with. | Something that is not simple or straightforward. |
| Example | The instructions for assembling the furniture were too complicated for me to follow. | Completing this project on time is **not so easy**. |
| Register | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 3,000 (common) |
| CEFR level | B2 | - |
| Part of speech | adjective | |
| Collocations | be, look, seem, extremely, fairly, very | not so easy task, not so easy to understand, not so easy as it seems, not so easy decision |
| Antonyms | simple, easy, straightforward | - |
| Common mistakes | Confusing 'complicated' with 'complex' — they have similar meanings but may be used differently., Using 'complicated' for simple tasks — it's better for things that genuinely have many steps. | Use 'not so easy' in formal writing where it's too informal., Confuse with 'not easy' - 'not so easy' implies a comparison., Overuse in contexts where simpler phrases would suffice. |
| Usage notes | Use 'complicated' when describing things that have many parts or are hard to follow. Avoid it in very casual contexts; simpler words like 'hard' may fit better. | Used to express that a task or situation is more difficult than it appears. Often used informally in conversation. |
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Frequently asked questions: Complicated vs Not so easy
What's the difference between Complicated and Not so easy?
Complicated: Something that is difficult to understand or deal with. Not so easy: Something that is not simple or straightforward.
Which is more common: Complicated and Not so easy?
Complicated is the most common in everyday English.
Can you show an example of each?
Complicated: The instructions for assembling the furniture were too complicated for me to follow. Not so easy: Completing this project on time is **not so easy**.
Can I use Complicated and Not so easy interchangeably?
Not always. Complicated and Not so easy 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.