What is whole? What is whole? Containing all components; complete: a whole wardrobe for the tropics. Not divided or disjoined; in one unit: a whole loaf. Constituting the full amount, extent, or duration: The baby cried the whole trip home. Not wounded, injured, or impaired; sound or unhurt: Many escaped the fire frightened but whole. Having been restored; healed: After the treatment he felt whole. Having the same parents: a whole sister. A number, group, set, or thing lacking no part or element; a complete thing.An entity or system made up of interrelated parts: The value of the whole was greater than the sum of its parts. Informal Entirely; wholly: a whole new idea. as a whole All parts or aspects considered; altogether: disliked the acting but enjoyed the play as a whole. on the whole Considering everything: on the whole, a happy marriage. on the whole In most instances or cases; as a rule: can expect sunny weather, on the whole.