Wash your hands - they're filthy! filthy (adj)
extremely or unpleasantly dirty
Sport is beneficial to your health. beneficial (adj)
helpful, useful, or good:S
Watch out! These are poisonous chemicals. poisonous (adj)
very harmful and able to cause illness or death
The stereotype is that men tend to be more aggressive than women. aggressive (adj)
showing anger and a willingness to attack other people
The food was absolutely disgusting - I couldn't eat it. disgusting (adj)
extremely unpleasant or unacceptable
We must protect our ecosystem. ecosystem (n)
all the living things in an area and the way they affect each other and the environment
It is a crucial decision that we have to make. crucial (adj)
extremely important or necessary
Sugar makes your teeth decay. decay (v)
to become gradually damaged, worse, or less
Rats and flies spread germs. germ (n)
a very small organism that causes disease
I got stung by a wasp yesterday. sting (v)
it produces a small but painful injury, usually with a poison, by brushing against the skin
Although snakes look slimy, their skin is actually dry to the touch. Slimy (adj)
Covered in slime, a greenish-brown substance found near water
common pests such as rats, mice, or cockroaches are harmful. pest (n)
an insect or small animal that is harmful or damages crops