Happening at the same time; synchronous.(adjective)
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Use "synchronical" in a sentence
"It's like synchronized synchronical synergistic synergism or something."
"Before sketching, as rapidly as possible, those celebrated but barren conferences, it is necessary, for the sake of unity in the narrative, to cast a glance at certain synchronical events in different parts of the Netherlands."
"All others are the results of chance, proceeding on an arc of observable possibility on a synchronical scale of Egyptian and Hebrew histories which is not orthodox."