from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Informal Having a relaxed or casual atmosphere or character; easygoing: "laid-back, untroubled people” ( New Yorker).
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. relaxed and easy-going; an absence of stress or worry
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. unhurried and relaxed
From U.S. slang (circa 1950s) (Wiktionary)