inquiétant

C'est inquiétant.

This is worrisome.

Tout cela est fort inquiétant.

All of this is very worrying.

J'ai trouvé cela très inquiétant.

I found that very alarming.

C'est extrêmement inquiétant.

This is deeply disquieting.

Il y avait un silence inquiétant.

There was an eerie silence.