unconcerned Synonyms

offhand unfeeling uninterested unmoved unruffled unobservant undisturbed unagitated at peace unawed blither unambitious unpolitical laid-back work-shy unaffected torpid passionless passive perfunctory phlegmatic phlegmatical pococurante reckless regardless relieved stoic stoical stolid supine tepid easygoing unenergetic undesirous undismayed uneager unemotional unenthusiastic unexcited unflustered unheeding unimpressionable uninquisitive unperturbed unstirred unsympathetic unthoughtful uncompassionate uncaring halfhearted