This is the 4271st most frequent Russian word.
адекватно
Adequately; appropriately; reasonably.
In this sentence, "адекватно" is used to indicate the appropriateness and proportionality of a reaction.
Он адекватно реагировал на критику.
He responded to criticism adequately.
The word "адекватно" here demonstrates the suitability of the explanation to the given conditions.
Она объяснила ситуацию адекватно обстоятельствам.
She explained the situation appropriately to the circumstances.
"Адекватно" conveys the idea of thorough and correct description in this context.