adjective

not influenced by strong emotion, and so able to be rational and impartial.

she dealt with life’s disasters in a calm, dispassionate way

unemotional,non-emotional,unsentimental,emotionless,impassive,nonchalant,cool,collected,calm,and collected,unruffled,unperturbed,composed,self-possessed,level-headed,self-controlled,temperate,sober,placid,equable,tranquil,serene,unexcitable,unflappable,clinical,cold,indifferent,unmoved,unfeeling,uncaring,unsympathetic,laid-back,nonplussed,objective,detached,neutral,disinterested,uninvolved,impersonal,impartial,non-partisan,non-discriminatory,unbiased,unprejudiced,open-minded,fair,fair-minded,just,equitable,balanced,even-handed,unselfish,scientific,analytical,rational,logical,businesslike,free from discrimination,without fear or favour