Casual intensifier used in everyday speech and writing. Stronger than とても, similar to めっちゃ (Kansai) or 超 (slang).
It's incredibly hot today, isn't it?
That movie was really interesting!
すごく is a common casual intensifier similar to 'really', but 超 is even more informal and emphatic, especially in youth speech.
すごく is a casual, purely positive-or-neutral intensifier, whereas いやに is more subjective and often implies that something feels off or unexpectedly extreme.
すごく is more casual and emphatic than とても, common in relaxed spoken Japanese.
すごく is a common casual intensifier acceptable in most everyday contexts, whereas めっちゃ is even more colloquial and closely tied to Kansai dialect.
すごく is a very casual, colloquial intensifier, while 大変 is more neutral and usable in polite or formal contexts.
すごく is casual, conversational 'really/so', while 大いに is more formal and often found in written or slightly elevated speech.
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.
Adverbial form of the adjective 凄い (すごい), meaning 'terrible' or 'amazing'. The adverbial use as an intensifier developed from the adjective's emphatic sense.