Dissertate is a word that means to write or discuss at length on a particular subject. The antonyms of dissertates are brief, concise, summary, and abridged. Dissertating can be time-consuming and tiring, but there are times when brevity is essential, like when presenting a summary or making an argument in a brief format. Concise writing saves time while also providing clarity and meaning. When presenting information in a limited time span, an abridged approach is ideal. To put it simply, the term "dissertates" can be opposed to "brief, concise, summary, and abridged.