Final answer:
The opposite of 'heavy' is 'light'.
Step-by-step explanation:
The opposite of 'heavy' is light.
'Heavy' refers to something that has a lot of weight, while 'light' represents the absence or reduction of weight.
For example, if you compare a feather (which is light) to a rock (which is heavy), you can clearly see the difference in weight.
Learn more about Opposites of words