I think the one thing this picture shows that's new is the psychological disproportion of the kids' demands on the parents. Parents are often at fault, but the kids have some work to do, too.
Source: tatoeba (3037433)
Ranked by relevance and common usage.
Keep "disproportion" when the sentence already sounds natural, when a synonym would add unintended emphasis, or when readers need the most familiar wording. A synonym should clarify or sharpen the message, not simply make the sentence look more varied.
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7 total sentences available.
I think the one thing this picture shows that's new is the psychological disproportion of the kids' demands on the parents. Parents are often at fault, but the kids have some work to do, too.
Source: tatoeba (3037433)
[…] a handsome creature, remarkably so, with features so symmetrical […] that a micrometer gauge could scarcely find a disproportion in her smooth and broad mahogany-coloured face.
Source: wiktionary
Then we, the social outsiders, turn around and dictate how men shall treat women (seldom, if ever, how women shall treat men; power in men's rather than women's hands being the excuse offered for this lop-sided arrangement), and how whites shall treat blacks (the same disproportion exists here too).
Source: wiktionary
the disproportion of the length of a building to its height
Source: wiktionary
Showing 4 of 7 available sentences.
Closest matches include imbalance, ambiguity, ambivalence, anamorphism, anamorphosis.
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.