| 1. | sinserious | ||
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the words sincere and serious together to indicate something such as a sentiment which is seriously sincere. I'm Sinserious about this; I'm utterly convinced he did it.
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| 2. | sinserious | ||
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a combination of the words sincere, and serious. used to convince someone that you mean what you say. Johnny: You look beautiful.
Susie: oh, you don't mean that! Johnny: I'm being sinserious. |
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