Here's a breakdown:
* Instinct: A natural, innate tendency to act or behave in a certain way.
* Instinctively: Acting or behaving in a way that is driven by instinct.
Examples:
* "She instinctively pulled her hand away from the hot stove."
* "The dog instinctively knew to hide under the bed when it heard a loud noise."
* "He instinctively knew that something was wrong."
Synonyms:
* Intuitively
* Naturally
* Spontaneously
* Automatically
Antonyms:
* Deliberately
* Consciously
* Thoughtfully
In essence, "instinctively" implies a behavior that is not thought out or planned, but rather comes naturally from within.