The phrase "hurled brickbat" is a colloquial expression primarily used in a negative or critical context. While it is difficult to find exact antonyms for this phrase, there are certainly words that convey the opposite meaning. Examples include compliment, praise, and commendation. These words suggest a positive acknowledgement rather than a negative one. Alternatively, words like support, encourage, and endorse could be considered antonyms, as they imply a positive reaction rather than a negative one. In essence, any word that conveys positivity, agreement or support can be considered an antonym for "hurled brickbat.