inexcitable (?.)
- affectless
- anesthetized
- apathetic
- arctic
- arid
- ataractic
- autistic
- aweless
- barren
- blah
- blank
- blase
- bloodless
- blunt
- bovine
- calm
- careless
- casual
- catatonic
- characterless
- chill
- chilly
- cold
- cold as charity
- cold-blooded
- coldhearted
- colorless
- composed
- cool
- coolheaded
- dead
- devil-may-care
- disinterested
- dismal
- dispassionate
- disregardful
- draggy
- drearisome
- dreary
- drugged
- dry
- dryasdust
- dull
- dusty
- easygoing
- effete
- elephantine
- emotionally dead
- emotionless
- empty
- etiolated
- even-tempered
- expected
- expecting
- fade
- flat
- frigid
- frosted
- frosty
- frozen
- heartless
- heavy
- heedless
- ho-hum
- hollow
- icy
- immovable
- impassible
- impassive
- imperturbable
- inane
- inattentive
- incurious
- inirritable
- insipid
- insouciant
- insusceptible
- jejune
- lackadaisical
- leaden
- lifeless
- listless
- low-spirited
- mindless
- negligent
- nerveless
- nonchalant
- nonemotional
- objective
- obtuse
- out of touch
- pale
- pallid
- passionless
- patient
- pedestrian
- perfunctory
- plodding
- pococurante
- pointless
- poky
- ponderous
- reckless
- regardless
- relaxed
- rock-steady
- self-absorbed
- slow
- solemn
- soulless
- spiritless
- steady
- steady-handed
- steady-nerved
- steel-nerved
- sterile
- stiff
- stodgy
- stoic
- stolid
- strong-nerved
- stuffy
- superficial
- tasteless
- tedious
- turned-off
- unaffectionate
- unamazed
- unanxious
- unastonished
- unastounded
- unawed
- unbewildered
- unblenching
- unblinking
- unconcerned
- undazed
- undazzled
- undiscriminating
- undisturbable
- undumbfounded
- unemotional
- unfaltering
- unfeeling
- unflappable
- unflinching
- unimpassioned
- unimpressed
- unimpressionable
- uninterested
- unirritable
- unlively
- unloving
- unmarveling
- unmindful
- unmoved
- unnervous
- unpassionate
- unquivering
- unresponding
- unresponsive
- unshaken
- unshaky
- unshrinking
- unsolicitous
- unstrained
- unsurprised
- unsusceptible
- unsympathetic
- untouchable
- untremulous
- unwavering
- unwondering
- vapid
- without a tremor
- wonderless
- wooden