Word for Mac Formatting Issue

Hello All. I am attempting to reformat a word document so the first line of a new paragraph automatically indents. While I have been able to do this, there are some paragraphs that should not have their first line indented. When I reformat the document those (intentionally) not indented lines become indented. Understandable. But, when I delete to "un-indent" the line I find that it cancels auto indent for the document (to be clear, paragraphs that were indented stay indented, but a new paragraph will not be auto-indented.) What, if anything, can I do?