An Adjective is a describing word and tells about a Person, a Place , an animal and a thing.
Some tips on recognising an adjective :
1. An Adjective answers the question “What kind?”
The thin boy is running.
Paris is a big city.
The black horse was in the stable.
This is a nice book.
2. Some adjectives tell about Colours
Did you see the white dog ?
3. Some adjectives tell about Shapes
The toys are in a square box.
4. Some adjectives tell about Size
This is a small bird.