to sleep peacefully (idiom); (fig.) to rest easy; to be free of worries

fears of trouble in the rear (idiom); family worries (obstructing freedom of action); worries about the future consequences; often in negative expressions, meaning "no worries about anything"

to worry; to concern oneself with; worried; anxiety; sorrow; (literary) to observe mourning

(literary) to be in mourning after the death of a parent

to share tribulations; to help sb with worries and difficulties

worrying; bleak

to report bad news; to announce failure, shortcoming or disaster

to worry; to fret

variant of 擔憂|担忧[dan1 you1]

secret concern; private worry

(lit.) the fear held by a man of 杞[Qi3] that the sky would fall (idiom); (fig.) groundless fears

see 杞人之憂|杞人之忧[Qi3 ren2 zhi1 you1]

not having to worry about clothes and food (idiom); to be provided with the basic necessities

to fret over the worries of long-departed people (idiom); to worry unnecessarily; crying over spilt milk; often used with negatives, e.g. no need to worry about past issues

to report only the good news, not the bad news; to hold back unpleasant news; to sweep bad news under the carpet

He who gives no thought to far-flung problems soon finds suffering nearby (idiom, from Analects).; Smug concentration on the here and now will lead to future sorrow.

happy on the one hand, but worried on the other