1) Being without cells 2) Cell-free 3) Noncellular 4) One-celled 5) Single-celled 
Containing no cells; not made up of cells.
<microbiology> Describes any organism or tissue that is a mass of protoplasm which is not divided into cells, such as the plasmodium of some slime molds and the hyphae of some fungi. ... (12 Mar 1998) ... 
(a-sel´u-lәr) lacking cells or not cellular in structure.
Not made of cells; commonest use is in reference to slime moulds such as Physarum that are multinucleate syncytia.
Type: Term Pronunciation: ā-sel′yū-lăr Definitions: 1. Devoid of cells. 2. A term applied to unicellular organisms that do not become multicellular and are complete within a single cell unit; frequently applied to protozoans to emphasize their complete organization within a single cell. Synonyms: noncellular2
Acellular: Not made up of cells or divided into cells. Or lacking intact cells as, for example, an acellular vaccine which may contain cellular material but not complete cells.
Acellular is a biological term describing tissues or organisms that are not made up of separate cells, but often have more than one nucleus. Examples of
acellular Containing no cells.
not made of cells
being without cells. · composed of tissue not divided into separate cells, as striated muscle fibers.