(=worried)
[neighbour, citizen, friend, parent] inquiet(-iète)
→ ... a phone call from a concerned neighbor.
[look, glance] inquiet(-iète)
to be concerned s'inquiéter, être inquiet(-iète)
to be concerned about sth s'inquiéter de qch, être inquiet(-iète) au sujet de qch
→ I've been concerned about you lately ...
→ We're deeply concerned about the implications of climate change
His mother is concerned about him. Sa mère s'inquiète à son sujet.
to be concerned for sb's safety s'inquiéter pour la sécurité de qn, se faire du souci pour la sécurité de qn
→ We're naturally concerned for our daughter's safety.
to be concerned that ... être inquiet que ... + subj
→ Academics and employers are deeply concerned that students are not sufficiently prepared mathematically for university courses.