Synonyms for Unimpassioned:

• adj.

  •all (adjective)
  • unimpassioned.
  •cold (adjective)
  • frigid,
  • cool,
  • unenthusiastic,
  • reticent,
  • spiritless,
  • frosty,
  • distant,
  • impersonal,
  • unfeeling,
  • standoffish,
  • unconcerned,
  • phlegmatic,
  • inhibited,
  • unsympathetic,
  • stony,
  • unresponsive,
  • glacial,
  • joyless,
  • reserved,
  • apathetic,
  • icy,
  • lukewarm,
  • cold-blooded,
  • indifferent,
  • unmoved,
  • coldblooded,
  • passionless,
  • inhospitable,
  • matter-of-fact,
  • dead,
  • undemonstrative,
  • imperturbable.
  •emotionless (adjective)
  • cold fish,
  • dispassionate,
  • flat,
  • unemotional,
  • thick-skinned,
  • immovable,
  • impassive,
  • detached,
  • nonemotional,
  • chill,
  • blank,
  • deadpan,
  • heartless,
  • poker face,
  • remote,
  • in cold blood.
  •matter-of-fact (adjective)
  • earthy,
  • down-to-earth,
  • objective,
  • dry,
  • serious,
  • pragmatic,
  • dull,
  • unimaginative,
  • prosy,
  • stoic,
  • unaffected,
  • plain,
  • feasible,
  • naked,
  • practical,
  • factual,
  • unvarnished,
  • mundane,
  • lifeless,
  • prosaic,
  • stolid,
  • hard-boiled.
  •sober (adjective)
  • earnest,
  • no nonsense,
  • subdued,
  • severe,
  • Abstaining,
  • Clear-headed,
  • forgoing,
  • lucid,
  • toned down,
  • Abnegating,
  • pacific,
  • eschewing,
  • low key,
  • somber,
  • levelheaded,
  • constrained,
  • drab,
  • sound,
  • no-nonsense,
  • dark,
  • soft,
  • low-key,
  • solemn.
  •temperate (adjective)
  • unextreme,
  • unexcessive.

• n.

  •dispassionate (noun)
  • composed,
  • rational,
  • sedate.

• Other synonyms:

  •
  • patient,
  • moderate.
  •Other relevant words:
  • impartial,
  • forbidding,
  • out of touch,
  • deliberate,
  • pedestrian,
  • unanimated,
  • unpoetical,
  • freezing,
  • Sober-minded,
  • contemplative,
  • sensible,
  • unresisting,
  • arctic,
  • rigid,
  • unstirred,
  • humdrum,
  • catatonic,
  • Unpoetic,
  • calculating,
  • untroubled,
  • courteous,
  • expressionless,
  • stoical,
  • abstemious,
  • drugged,
  • Inexcitable,
  • unruffled,
  • unembellished,
  • staid,
  • awkward,
  • insensitive,
  • stiff,
  • obtuse,
  • cogitative,
  • equanimous,
  • disciplined,
  • commonplace,
  • prose,
  • unsusceptible,
  • mild,
  • unagitated,
  • clumsy,
  • self-absorbed,
  • simple,
  • insipid,
  • ice-cold,
  • empty,
  • common,
  • meditative,
  • affectless,
  • unaffectionate,
  • equable,
  • anesthetized,
  • unflustered,
  • restrained,
  • blunt,
  • steady,
  • realistic,
  • sane,
  • insusceptible,
  • quiet,
  • unperturbed,
  • not excessive,
  • unloving,
  • unnatural,
  • untouchable,
  • self-possessed,
  • wooden,
  • frosted,
  • flinty,
  • hostile,
  • collected,
  • unimpressionable,
  • tranquil,
  • philosophical,
  • vacant,
  • aloof,
  • even-tempered,
  • level-headed,
  • colourless,
  • stilted,
  • artificial,
  • grave,
  • Impassible,
  • unoffended,
  • vapid,
  • stable,
  • abstinent,
  • Cold-hearted,
  • ungainly,
  • tiresome,
  • cold as charity,
  • judicious,
  • placid,
  • formal,
  • Prosing,
  • anaesthetised,
  • unromantic,
  • ordinary,
  • steely,
  • undisturbed,
  • callous,
  • reasonable,
  • coldhearted,
  • serene,
  • unexcited,
  • Cool-headed,
  • thoughtful,
  • Stony-hearted,
  • forbearing,
  • reflective,
  • soulless,
  • Unpassionate,
  • unfriendly,
  • chilly,
  • autistic,
  • uncaring,
  • modest,
  • controlled,
  • frozen.

Antonyms for Unimpassioned:

• adj.

  • cold
    eager, excited, enthusiastic, warm, hot, interested, fervid, ardent, zealous, responsive, kind, friendly, sympathetic, animated.
  • emotionless
    biased, feeling, demonstrative, passionate, emotional.
  • matter-of-fact
    imaginative, lively, unreasonable.
  • sober
    insincere, unserious, boisterous, agitated, annoyed, unrealistic, impractical, inebriated, flippant, funny, immoderate, nervous, drunk, frivolous, worried, happy, cheerful, light, excitable, upset, troubled, unimportant, irrational, trivial.
  • temperate
    excessive, harsh, violent, unpleasant, stormy, disagreeable, nasty, uncontrolled, hateful.