Longman Dictionary of Contemporary English
Wiktionary
a. without trouble
WordNet
adj. without problems or difficulties; "NASA reported a trouble-free launch"
Usage examples of "trouble-free".
That intervention and occupation forces should not rely on collaborationist domestic minorities to maintain control responded to the awareness from the Balkan experience that such alliances are volatile, and may trigger uncontrollable interethnic conflict antithetical to the objective of a trouble-free occupation.
In the two years since it began operating, Big Lil had been economical compared with smaller generators, magnificently reliable, and trouble-free.
It was the first trouble-free transfer the boy had had at the Sime Center, and for Digen it was both thrilling and satisfying, a vicarious sharing almost as good as having his own transfer.
Brun discovered she had a reputation which had preceded her (how, she couldn't figure out)someone on the Bucclos Success had spread the word that she was a hard worker and trouble-free, so she had offers posted to her mail slot by the time she thought to check it.