The antonyms for the phrase "counted heads" could be ambiguous or unaccounted for. The former suggests a lack of clarity or definition, while the latter implies a lack of responsibility or attention to detail. In both cases, the phrase "counted heads" represents a methodical approach to understanding and organizing a group of people, and any antonyms would likely suggest a more haphazard or disorganized process. Ultimately, the antonyms for "counted heads" would depend on the context and purpose of the counting, as well as the attitude and behavior of the person doing the counting.