"without sparing" is correct and usable in written English.
You can use it to indicate that something or someone is not being shown any mercy or leniency. For example, "The police raided the house without sparing any expense."
Compassion broadens judgment without sparing it.
The 80-year-old father asks his children to let loose their memories without sparing his feelings — and to record themselves as they do so.
Ms. Athill's gift is the ability to examine events and motivations in the round, to get to the heart of them without sparing her own feelings.
Neither faction in the party is blameless: those attacking Corbyn and those close to him rarely seem to offer any clear ideological arguments or policy ideas themselves, and instead seem intent on complaining about the result of a democratic election without sparing a thought for how petulant it makes them seem.
And while three and a half years might seem a little ambitious, he stresses he is taking at least a 25-year view of the city, without sparing a moment's thought for re-election – concluding with the Greek proverb that "we should be prepared to plant trees under the shade of which we will never sit ourselves".
Without sparing criticism of Czech policy — the "mistake," for instance, of effectively segregating Czech Roma in special schools — he lauded the mayor of Cesky Krumlov, a Baroque jewel in the south of the Czech Republic, where Roma have not been marginalized in ghettoes and take a pride and a part in keeping the town spick and span.
I am thankful for the policy that any request for assistance is fulfilled and that this is done without question, sparing me rehashing sensitive information each time.
Mr. Davis said a visit to the devastation of the World Trade Center played a role in his resolve to step down without delay, sparing Lincoln Center a protracted struggle.
Hands and feet were contoured without bone sparing as CTVhand and CTVfeet.
Thus, improvements in graft survival comparable with those attributed to the "transfusion effect" are now observed without transfusions, sparing patients the risks associated with pre-transplant transfusion.
We have previously shown that, given certain criteria, up to one third of women diagnosed with a tubal ectopic pregnancy by high resolution transvaginal ultrasound can be managed expectantly without any intervention, thus sparing these patients the morbidity of surgery and side effects of medical treatment [ 2].
