Below are possible answers for the crossword clue Rarer than rare.
3 letter answer(s) to rarer than rare
RAW
(used especially of commodities) being unprocessed or manufactured using only simple or minimal processes;
(used informally) completely unclothed
brutally unfair or harsh; "received raw treatment from his friends"; "a raw deal"
devoid of elaboration or diminution or concealment; bare and pure; "naked ambition"; "raw fury"; "you may kill someone someday with your raw power"
having the surface exposed and painful; "a raw wound"
hurting; "the tender spot on his jaw"
informal terms for nakedness; "in the raw"; "in the altogether"; "in his birthday suit"
lacking training or experience; "the new men were eager to fight"; "raw recruits"
not processed or refined; "raw sewage"
not processed or subjected to analysis; "raw data"; "the raw cost of production"; "only the crude vital statistics"
not treated with heat to prepare it for eating
unpleasantly cold and damp; "bleak winds of the Nor
7 letter answer(s) to rarer than rare
TARTARE
Of steak or fish served raw
6 letter answer(s) to rarer than rare
UNIQUE
(followed by `to') applying exclusively to a given category or condition or locality; "a species unique to Australia"
highly unusual or rare but not the single instance; "spoke with a unique accent"; "had unique ability in raising funds"; "a frankness unique in literature"; "a unique dining experience"
radically distinctive and without equal; "he is alone in the field of microbiology"; "this theory is altogether alone in its penetration of the problem"; "Bach was unique in his handling of counterpoint"; "craftsmen whose skill is unequaled"; "unparalleled athletic ability"; "a breakdown of law unparalleled in our history"
the single one of its kind; "a singular example"; "the unique existing example of Donne's handwriting"; "a unique copy of an ancient manuscript"; "certain types of problems have unique solutions"
Other crossword clues with similar answers to 'Rarer than rare'