Antonyms for 'gave low down' include 'withheld information', 'kept quiet', 'remained silent', 'concealed details', or 'failed to disclose'. These antonyms denote the opposite of providing information and details about a subject or situation. They imply a lack of openness, transparency, and honesty. Whereas 'gave low down' suggests that the speaker shared knowledge and insights, the antonyms indicate that the speaker chose to keep certain facts and details to themselves. In some cases, withholding information can be a strategic move to protect oneself or others, but in many cases, it can result in confusion, miscommunication, and misunderstanding.