skillful at eluding capture; "a cabal of conspirators, each more elusive than the archterrorist"- David Kline
making great mental demands; hard to comprehend or solve or believe; "a baffling problem"; "I faced the knotty problem of what to have for breakfast"; "a problematic situation at home"
difficult to describe; "a haunting elusive odor"
difficult to detect or grasp by the mind or analyze; "his whole attitude had undergone a subtle change"; "a subtle difference"; "that elusive thing the soul"
not widely distributed; "rare herbs"; "rare patches of green in the desert"
not widely known; especially valued for its uncommonness; "a rare word"; "rare books"
(of meat) cooked a short time; still red inside; "rare roast beef"
recurring only at long intervals; "a rare appearance"; "total eclipses are rare events"
marked by an uncommon quality; especially superlative or extreme of its kind; "what is so rare as a day in June"-J.R.Lowell; "a rare skill"; "an uncommon sense of humor"; "she was kind to an uncommon degree"
having low density; "rare gasses"; "lightheaded from the rarefied mountain air"
less than the correct or legal or full amount often deliberately so; "a light pound"; "a scant cup of sugar"; "regularly gives short weight"
supply sparingly and with restricted quantities; "sting with the allowance"
limit in quality or quantity
work hastily or carelessly; deal with inadequately and superficially