Lacking harmony; discordant or conflicting.
From 'disharmonic' plus the adjectival suffix '-al', creating a variant form. Both '-ic' and '-ical' can derive from the same root, offering stylistic alternatives.
English loves suffix variations—'dramatic/dramatical,' 'historic/historical'—and while some pairs have split meaning, 'disharmonic' and 'disharmonical' mean nearly the same thing, showing how English allows redundant formations.
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