Adjective
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capable of thinking and expressing yourself in a clear and consistent manner
"a lucid thinker"
"she was more coherent than she had been just after the accident"
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marked by an orderly, logical, and aesthetically consistent relation of parts
"a coherent argument"
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based on known statements or events or conditions
"rain was a logical expectation, given the time of year"
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capable of or reflecting the capability for correct and valid reasoning
"a logical mind"