There are several antonyms for the word "censusing," a term used to describe the enumeration of people or things. One antonym is "undercounting," which refers to the failure to identify or count all individuals or objects accurately. Another antonym is "estimating," which involves making a rough calculation or guessing the number of people or objects in a given area. "Miscounting" is another antonym, which means to count or tally incorrectly, resulting in inaccurate data. Lastly, "ignoring" is an antonym for censusing, which means to overlook or disregard the task of counting people or things altogether.