Expresses "easy to do V" or "tendency/characteristic of being easy to V".
Used for actions (読みやすい, 使いやすい) and physical properties (壊れやすい, 乾きやすい).
Compared with 易しい(やさしい): different meaning. 易しい = "easy" in terms of difficulty level; ~やすい = "easy to V" in terms of the tendency to perform a specific action.
Often objective/useful in product, design, and UX descriptions.
3. Illustrative examples
このフォントは読みやすい。 This font is easy to read.
新しいUIは直感的で使いやすい。 The new UI is intuitive and easy to use.
ガラスは割れやすいので注意してください。 Glass breaks easily, so please be careful.
このシャツは乾きやすい素材でできている。 This shirt is made of a quick-drying material.
人は疲れるとミスしやすい。 People make mistakes easily when they're tired.
メモしておけば覚えやすい。 Taking notes makes it easier to remember.
ここは風が通って涼しやすい。 The wind passes through here, so it stays cool.