conscienceless
Lacking a conscience; unscrupulous or ruthless.
Adjective
- Lacking a conscience; unscrupulous or ruthless.
- It was watching her with cold animal curiosity, something demonish and conscienceless. - 1925, D. H. Lawrence, The Princess:
Origin
Etymology tree English conscience Proto-Indo-European *lewh₁- Proto-Indo-European *lewHs-der. Proto-Germanic *leusaną Proto-Germanic *lausaz Proto-Germanic *-lausaz Proto-West Germanic *-laus Old English -lēas Middle English -les English -less English conscienceless From conscience + -less.