1.injurious to physical or mental health;
noxious chemical wastes
2.injurious to physical or mental health;
noxious chemical wastes
3.able or likely to do harm
4.able or likely to do harm
5.causing or capable of causing harm;
too much sun is harmful to the skin
6.causing or capable of causing harm;
too much sun is harmful to the skin
7.constituting a disadvantage
8.constituting a disadvantage
9.contrary to your interests or welfare;
adverse circumstances
10.contrary to your interests or welfare;
adverse circumstances
11.tending to cause great harm
12.tending to cause great harm