73 synonyms for discourse such as confer, adda, address, expatiate, chat, and chew the fat. Discourse is a noun, and its antonyms are silence and quiet.
Adda, chat, chit-chat, colloquy, communication, confab, confabulation, conference, consultation, conversation, converse, debate, dialogue, discussion, interlocution, korero, palaver, parley, powwow, talk, and verbal exchange.
Address, critique, disquisition, dissertation, essay, homily, lecture, monograph, oration, paper, peroration, sermon, speech, study, tract, and treatise.
Dissertate, expatiate, give a speech, give a talk, give an address, hold forth, lecture, lucubrate, orate, perorate, pontificate, preach, preachify, sermonize, sound off, speechify, spiel, spout, talk, write at length, and write learnedly.
Chat, chew the fat, confabulate, confer, consult, converse, debate, discuss matters, have a confab, have a discussion, parley, rap, speak, and talk.