S: (adj) polar (located at or near or coming from the earth's poles) "polar diameter"; "polar zone"; "a polar air mass"; "Antarctica is the only polar continent"
S: (adj) polar (of or existing at or near a geographical pole or within the Arctic or Antarctic Circles) "polar regions"
S: (adj) arctic, frigid, gelid, glacial, icy, polar (extremely cold) "an arctic climate"; "a frigid day"; "gelid waters of the North Atlantic"; "glacial winds"; "icy hands"; "polar weather"
S: (adj) pivotal, polar (being of crucial importance) "a pivotal event"; "Its pivotal location has also exposed it to periodic invasions"- Henry Kissinger; "the polar events of this study"; "a polar principal"