Hurling brickbats is usually done as an expression of disapproval or criticism. To find antonyms, we need to look for words or phrases that express approval or praise. Some possible antonyms could include: compliment, praise, applaud, approve, cheer, extol, laud, approve, sanction, support, commend or endorse. These words all convey positive sentiments towards a person or their actions, rather than the negative connotations of hurling brickbats. So, next time you want to express your disapproval of something, consider using one of these alternative options to avoid adding to the negativity in the world.