えらくMeanings1adverbawfully; terribly; extremelyusually written using kana aloneAdverbial form of えらい, used to emphasize degree. Often carries a nuance of being surprisingly or excessively much. Common in casual speech.See also: えらい今日きょうはえらく寒さむいね。It's awfully cold today, isn't it?彼かれはえらく怒おこっていた。He was terribly angry.