Full of discord; characterized by disagreement or conflict; quarrelsome.
From discord plus the -ful suffix, which means 'full of.' The construction is parallel to words like 'peaceful' (full of peace) or 'joyful' (full of joy).
The -ful suffix is ancient and comes from Old English, used for over a thousand years to describe things brimming with a quality—which is why 'discordful' feels both poetic and somewhat old-fashioned!
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