The phrase "less withdrawals" means experiencing a lower amount or intensity of negative symptoms or cravings when stopping or reducing the use of a particular substance or habit. Full definition
If age attained was more than 60 years, higher of the Sum Assured less withdrawals made after age 58 or the Fund Value subject to a minimum of 105 % of all premiums paid is payable (policybazaar.com)
Return of Premium Rider ** This rider provides a death benefit equal to the face amount plus the premiums less any withdrawals, accumulated with interest. (globalatlantic.com)
1) Sum Assured (less all withdrawals made during the two year period immediately preceding the date of death) (myinsuranceclub.com)