worrisomeUSformal or old-fashioned
A worrying trend for insurers has been a rise in fraudulent claims.令保险公司不安的是，诈骗性的索赔呈上升趋势。
That's the most worrying aspect of the situation.这是局势最令人担心的一面。
By midweek, the situation had become worrying.到周中时，情况变得令人担忧。
He demonstrated a worrying naivety about political issues.他在政治问题上表现得很幼稚，真令人担心。
I heard something rather worrying at work this morning.

SMART Vocabulary: related words and phrases

Causing anxiety and worry
alarming
alarmingly
bite
catch up with someone
come back to bite someoneidiom
disturb
dread
frighten
frighten someone/something away/off
get/go beyond a jokeidiom
give someone the jimjamsidiom
give someone the jittersidiom
oppressive
rattle
roost
stressful
stressfully
suspenseful
suspensefully
suspensive

Related word