unmerciful (Greek #415)

Romans
1:31   Without understanding
asunetos (Greek #801)
unintelligent; by implication, wicked
KJV usage: foolish, without understanding.
Pronounce: as-oon'-ay-tos
Origin: from 1 (as a negative particle) and 4908
, covenantbreakers
asunthetos (Greek #802)
properly, not agreed, i.e. treacherous to compacts
KJV usage: covenant-breaker.
Pronounce: as-oon'-thet-os
Origin: from 1 (as a negative particle) and a derivative of 4934
, without natural affection
astorgos (Greek #794)
hard-hearted towards kindred
KJV usage: without natural affection.
Pronounce: as'-tor-gos
Origin: from 1 (as a negative particle) and a presumed derivative of στέργω (to cherish affectionately)
, implacable
aspondos (Greek #786)
literally, without libation (which usually accompanied a treaty), i.e. (by implication) truceless
KJV usage: implacable, truce-breaker.
Pronounce: as'-pon-dos
Origin: from 1 (as a negative particle) and a derivative of 4689
, unmerciful
aneleemon (Greek #415)
merciless
KJV usage: unmerciful.
Pronounce: an-eleh-ay'-mone
Origin: from 1 (as a negative particle) and 1655
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