The antonyms for the word "un-neat" are words that describe a well-kept and organized appearance. Some possible antonyms include "neat," "tidy," "orderly," "systematic," "clean," and "well-kept." These words imply that the object or area in question is well-maintained, with no clutter or disarray. For example, a tidy bedroom has all of its belongings neatly put away, while an orderly desk has paperwork filed and in its proper place. Similarly, a clean kitchen is free of any food or crumbs, and a well-kept lawn is properly mowed and edged. Using antonyms to describe the opposite of "un-neat" can help to communicate the importance of cleanliness and organization.