unannoying
/ˌʌnˈnɔɪɪŋ/Definitions
1. adjective
free from causing annoyance or annoyance
“The quiet atmosphere of the library was unannoying and conducive to studying.”
2. adverb
in a way that is free from causing annoyance or annoyance
“She drove unannoyingly slowly through the crowded streets.”