concerned

1. 1
   worriedadjective

   Feeling or showing worry, care, or anxiety about something.

   The concerned parents called the school for answers.

   She seemed deeply concerned about the test results.

   UsageWorried about something or for someone: concerned about the results, concerned for her safety. Concerned with names a topic instead.

   Similarworried, anxious, troubled, uneasy, apprehensive

   Oppositeunconcerned, indifferent, untroubled, unworried

2. 2
   on a subjectadjective

   Of a book, a piece of research, or a person: having a particular subject as its topic or focus of interest, usually followed by with.

   The study is concerned with how sleep affects memory in older adults.

   As a historian, she is chiefly concerned with the early years of the republic.

   UsageUsually be (chiefly, mainly) concerned with a subject. With about or for, the word means worried instead.

3. 3
   adjective

   Involved in a particular matter, or having responsibility for it.

   The delay was frustrating for everyone concerned, but the builders and the owners finally agreed on a new schedule.

   All parties concerned must sign the agreement before it takes effect.

   UsageUsually comes after the noun: the people concerned, everyone concerned. The concerned parents are worried; the parents concerned are the ones involved.

   Similarinvolved, affected, interested, relevant

   Oppositeuninvolved, unaffected

4. 4
   verb

   Simple past tense and past participle of concern.

   The investigation concerned several missing documents.

   She had concerned herself with every detail of the plan.

   UsageOften with herself, himself and so on plus with: she concerned herself with every detail, meaning she busied herself with it.

Showing meanings only. Show all 4