Can you help me think of Antonyms for these 2 words?

The words are:



1) boomerang (need 2 antonyms)

2) hydroelectric power (need 2 antonyms)





Thanks!Can you help me think of Antonyms for these 2 words?
How about:



Fired Bullet and Glacier Drain



Or



Would 'Black Hole' do for both? =%26gt;
1) Stick or pole

2) Nuclear or coal-fired power.



Nyah! LOLCan you help me think of Antonyms for these 2 words?
1) Stick



2) Air power :DCan you help me think of Antonyms for these 2 words?
There is no antonym to boomerang. It's an object. That's like saying there's an antonym to a car. The same applies to hydroelectric power.



In order for there to be a proper antonym, the word must be part of a binary system (i.e. two terms, such as alive/dead, black/white, etc...). These terms are not parts of binary systems, and therefore possess no opposites in any logical sense.



Tell your teacher that.
There are no antonyms for objects.