Not likely to offend or provoke to strong emotion; insipid.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "innocuous" in a sentence
"He noted what he called an innocuous collection of photos of junior boxing groups."
"A speech by the president should be in innocuous exercise in civics and public discourse."
"Explaining your challenge to something fairly innocuous is a courteous, adult thing to do."