A suffix attached to the masu-stem of verbs to mean 'difficult to (do)' or 'hard to (do)' physically or emotionally (e.g., 'yomi-durai' = hard to read). Usually written in kana as 'づらい'.
この字は古くて読みづらいので、注釈を付けた。
These characters are old and hard to read, so I added notes.
本音を言いづらい状況だったが、正直に話した。
It was a situation where it was hard to say my true feelings, but I spoke honestly.
混雑していて歩きづらい場所があるので、注意して進んでください。
There are places that are crowded and hard to walk through, so please move carefully.