Definition of trouble-free in US English:
 trouble-free
adjectiveˌtrəblˈfrēˌtrəblˈfri
Not experiencing or causing any problems.
 proper installation will ensure trouble-free performance
 your life is trouble-free now that you've hit the big time
 Example sentencesExamples
-  Thanks to his equanimity and good sense, he had given France the most trouble-free regency in its history.
 -  Some of you will be blessed with trouble-free wisdom teeth.
 -  Follow these procedures, and you should find the gas fixtures in your home to be safe, convenient, and trouble-free.
 -  This is not to suggest that the relationship between state and capital is trouble-free.
 -  At first, olives were a trouble-free crop here.
 -  Make sure the current drive in your PC is trouble-free.
 -  Even for those scholars with a masterful knowledge of English, the situation is not completely trouble-free.
 -  They need reliable, trouble-free, long-blooming flowers; through experience, they've learned which plants meet those criteria.
 -  The euro has rallied strongly on the foreign exchange markets after investors took heart from its mostly trouble-free introduction as a cash currency.
 -  Fava beans are a tenacious and trouble-free crop that succeeds where the growing season is short and other beans fail.