"Negligible fees" means that the amount of money being charged is so small or insignificant that it can be disregarded or considered trivial. Full definition
Once again, these are relatively negligible fees compared to some competitors. (dailybitcoinnews.com)
A return of premium life insurance policy is one where, minus very negligible fees, your premium payments are refunded to you at the end of the term (assuming the death benefit hasn't been paid out, of course). (policygenius.com)
XRP allows for seamless financial transactions from any given currency to any other currency with negligible fees. (dailybitcoinnews.com)