frigid (adj.)
- algid
- aloof
- arctic
- asexual
- austere
- autistic
- backward
- bashful
- biting
- bitter
- blank
- bleak
- blunt
- boreal
- brisk
- brumal
- callous
- castrated
- catatonic
- chilly
- cold
- cold-blooded
- coldhearted
- constrained
- cool
- crisp
- cutting
- detached
- discreet
- dispassionate
- distant
- drugged
- dull
- emasculated
- emotionless
- exclusive
- expressionless
- forbidding
- frosted
- frosty
- frozen
- frustrated
- gelid
- glacial
- guarded
- haughty
- heartless
- hibernal
- hiemal
- ice-cold
- icelike
- icy
- immovable
- impassive
- impersonal
- impervious
- impotent
- inaccessible
- inclement
- indifferent
- inhibited
- insusceptible
- introverted
- keen
- modest
- neuter
- neutral
- nipping
- nippy
- numbing
- obdurate
- objective
- obtuse
- offish
- passionless
- passive
- penetrating
- piercing
- pinching
- polar
- prim
- raw
- remote
- removed
- repressed
- reserved
- restrained
- reticent
- retiring
- rigid
- rigorous
- self-absorbed
- severe
- sexless
- sharp
- shrinking
- sleety
- slushy
- snappy
- soulless
- spiritless
- standoffish
- steely
- stiff
- stone-cold
- stony
- strait-laced
- subdued
- suppressed
- thick-skinned
- unaffectionate
- unapproachable
- uncongenial
- undemonstrative
- undersexed
- unemotional
- unexpansive
- unfeeling
- unfriendly
- unimpassioned
- unimpressionable
- unloving
- unresponsive
- unsexed
- unsusceptible
- unsympathetic
- untouchable
- wintery
- wintry
- withdrawn