Romans Chapter 1 Vs. 31

Without understanding, covenantbreakers, without natural affection, implacable, unmerciful: Rom 1:31

Without understanding... Ignorant and destitute of capacity for spiritual things; stubborn.

Covenant breakers... Greek: asunthetos, not morally bound to any agreement; not dependable; treacherous to covenants; faithless to promises; false to trusts.

without natural affection... Destitute of natural affection; that is, filled with desire for unnatural affection experiences with husband or wife or same-sex partners in the homosexual and other sexual deviation sins of Rom. 1:24-28.

implacable... Greek: aspondos, without libation (which accompanied a treaty). Greeks used it to appease the angry gods and reconcile them to the contracting parties. A person who would not pour libation was at deadly enmity with the other one and showed the highest pitch of an unforgiving spirit. He could not be placated, appeased, or pacified by God.

Unmerciful... Greek: aneleemon, pitiless; destitute of all benevolence to the needy; cruel; merciless; irreconcilable; severe; unappeasable; unforgiving; unyielding.