The phrase "lay at one's door" means to blame or hold responsible for something. Its antonyms include absolve, exonerate, acquit, and exculpate, which all mean to clear someone of blame. Another antonym is vindicate, which means to show that someone was right or justified in their actions. Other antonyms include praise, commend, and laud, which mean to express approval or admiration. Instead of laying blame, these words focus on acknowledging and recognizing positive actions or qualities. Finally, forgive can also be considered an antonym as it means to stop feeling anger or resentment towards someone for something they have done.
