irrepressible
ir.re.press.ible \-'pres-*-b*l\ \-ble-\ aj : impossible to repress, restrain, or control - ir.re.press.ibly av
Webster's English Dictionaryir.re.press.ible \-'pres-*-b*l\ \-ble-\ aj : impossible to repress, restrain, or control - ir.re.press.ibly av