unimpassioned (adj.)

• arctic
• autistic
• blunt
• catatonic
• chilly
• cold
• cold-blooded
• coldhearted
• common
• commonplace
• cool
• dispassionate
• drugged
• dull
• emotionless
• flat
• frigid
• frosted
• frosty
• frozen
• heartless
• humdrum
• icy
• immovable
• impassive
• insipid
• insusceptible
• matter-of-fact
• mundane
• objective
• obtuse
• ordinary
• passionless
• pedestrian
• plain
• prosaic
• prose
• prosy
• self-absorbed
• soulless
• spiritless
• tiresome
• unaffectionate
• unagitated
• undisturbed
• unembellished
• unemotional
• unexcited
• unfeeling
• unflustered
• unimaginative
• unimpressionable
• unloving
• unperturbed
• unresponsive
• unromantic
• unruffled
• unstirred
• unsusceptible
• unsympathetic
• untouchable
• untroubled
• vapid