The term 'not upright' can be described by four different crossword solutions: ASLANT (6 letters), ALIST (5 letters), ATILT (5 letters), and ATASLANT (8 letters). All of these words refer to an object or person that is not in a vertical position, but instead is leaning or slanted in some way. ASLANT and ataslant are both adverbs that mean 'slanting or inclined in one direction, ' while alist and ATILT are both adjectives that mean 'tilted or leaning to one side.'