| Noun | 1. | fullness - completeness over a broad scopecompleteness - the state of being complete and entire; having everything that is needed | |
| 2. | fullness - the property of a sound that has a rich and pleasing timbretimbre, tone, quality, timber - (music) the distinctive property of a complex sound (a voice or noise or musical sound); "the timbre of her soprano was rich and lovely"; "the muffled tones of the broken bell summoned them to meet" | |
| 3. | fullness - the condition of being filled to capacitycondition, status - a state at a particular time; "a condition (or state) of disrepair"; "the current status of the arms negotiations" solidity - state of having the interior filled with matter infestation - the state of being invaded or overrun by parasites | |
| 4. | fullness - greatness of volume | |