Wide and narrow are opposites, like a big river and a thin stream.
A wide river is far across from side to side. A narrow stream is thin enough to hop over. Wide means lots of space, narrow means very little.
More facts about Opposites Size
Big and small are opposites — an elephant is big, a mouse is small.
Tall and short are opposites, like a giraffe and a rabbit.
Long and short can describe size, like a snake and a worm.
A baby animal is small and grows bigger as it gets older.
The biggest animal ever is the blue whale, bigger than any dinosaur.