Thoroughly tested and proved to be good or trustworthy.(adjective)
Made to undergo trials or distress. Often used in combination: a much-tried teacher. (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 "tried" in a sentence
"There's a little Italian man who comes into our store everyday who insists on correcting my pronounciation, and I've tried, like seriously *tried*, but old habits just die hard!"
"We looked and looked, and I tried on lots of jeans, and modeled and tried and modeled and tried "
"The charges against you were so serious that we couldn't get them dropped, and we tried, man, we _tried_."