Collins COBUILD Advanced Learner's English Dictionary - unhealthy

(unhealthier, unhealthiest) 1. Something that is unhealthy is likely to cause illness or poor health. Avoid unhealthy foods such as hamburger and chips... He worked in the notoriously unhealthy environment of a coal mine. ? healthy ADJ 2. If you are unhealthy, you are not very fit or well. I’m quite unhealthy really. ...a poorly dressed, unhealthy looking fellow with a poor complexion. ? healthy ADJ 3. An unhealthy economy or company is financially weak and unsuccessful. (BUSINESS) The redundancy of skilled and experienced workers is a terrible waste and a clear sign of an unhealthy economy. = weak ? strong ADJ 4. If you describe someone’s behaviour or interests as unhealthy, you do not consider them to be normal and think they may involve mental problems. Frank has developed what I would term an unhealthy relationship with these people... MacGregor believes it is unhealthy to lead a life with no interests beyond politics. ? healthy ADJ