beyond the literal or primary sense; "`hot off the press' shows an extended sense of `hot'"
fully extended or stretched forth; "an extended telescope"; "his extended legs reached almost across the small room"; "refused to accept the extended hand"
absolutely required and not to be used up or sacrificed
absolutely necessary; vitally necessary; "essential tools and materials"; "funds essential to the completion of the project"; "an indispensable worker"
being or relating to or containing the essence of a plant etc; "essential oil"
being complete of its kind and without defect or blemish; "a perfect circle"; "a perfect reproduction"; "perfect happiness"; "perfect manners"; "a perfect specimen"; "a perfect day"
make perfect or complete; "perfect your French in Paris!"
not inclined to society or companionship; "an unsociable nature...shy and reserved"; "generally unsociable except with intimate friends"; "unsociable behavior"; "an unsociable neighborhood"