This is the 3907th most frequent Turkish word.
aşırı
Excessive; extreme.
In this sentence, 'aşırı' is used as an adverb to specify the degree of 'hotness' (çok sıcak). It emphasizes that the weather is not just hot but extremely so.
Bugün hava aşırı sıcak.
The weather is extremely hot today.
Here, 'aşırı' is used as an adjective qualifying the noun 'şeker tüketmek' (sugar consumption). It denotes that the sugar consumption is beyond normal, emphasizing its harmfulness.
Aşırı şeker tüketmek sağlığa zararlıdır.
Excessive sugar consumption is harmful to health.
In this sentence, 'aşırı' functions as an adjective modifying 'tepki' (reaction). It indicates that the reaction went beyond what was considered reasonable or appropriate.