昨日はひどく疲れた。
I was terribly tired yesterday.
He was extremely angry.
She was awfully surprised at the news.
He failed the exam and is terribly depressed.
My head has been hurting terribly since yesterday.
I was utterly exhausted after moving.
とても is a neutral, everyday intensifier for any degree, while 酷く carries a negative or extreme connotation.
非常に is a formal, neutral intensifier used in writing and speech, whereas 酷く specifically implies something bad or severe.
甚だ is a literary, formal intensifier often used with negative or regrettable situations, much like 酷く but more bookish.
すごく is a casual, all-purpose intensifier that can be positive or negative, while 酷く is used mainly for negative or severe situations.
ひどく means 'terribly, severely' and simply intensifies a negative quality, whereas どうにも in this sense adds a nuance of being beyond help or unbearable.
ひどく often carries a negative or excessive nuance ('terribly'), whereas 痛く is more neutral in tone despite its formality.
ひどく means 'terribly' or 'severely' in a general sense, while 散々 often implies a prolonged or repeated negative experience.
Standard kanji form, though It is usually written in kana.
Rarely used kanji form.
Adverbial form of the adjective ひどい (terrible, cruel). The kanji 酷 carries the meaning of 'severe' or 'cruel', while 非道 literally means 'unjust path', but the kana spelling is most common.