What does rueful mean?

"Rueful" means feeling or showing sorrow or regret, especially in a gentle or humorous way. It suggests a kind of wistful sadness, often accompanied by a sense of self-deprecation or resignation.

Here are some examples of how "rueful" can be used:

* "He gave a rueful smile at the memory of his youthful folly." (This implies he's looking back on a mistake with a touch of humor and acceptance.)

* "The actress's rueful expression revealed her disappointment at not winning the award." (Her sadness is expressed in a way that isn't dramatic or overly emotional.)

* "She offered a rueful apology for her outburst, knowing it had been unnecessary." (The apology shows regret but also a bit of wry amusement at her own behavior.)

Essentially, "rueful" captures a sense of bittersweet sadness, often tinged with humor or irony.