necessarily
adv.used to say that something is not always true or certain. You use it to show that even if one thing happens, it does not mean another thing must happen.
adv.as a logical consequence or by inevitable necessity. Frequently used in negative constructions to indicate that a specific outcome or conclusion is not guaranteed.
“A higher price does not necessarily mean better quality.”
“Just because the lights are on in the office, it doesn't necessarily mean that anyone is still working.”
“While the two events occurred simultaneously, it does not necessarily follow that one caused the other, as correlation is distinct from causation.”
Commonly follows 'not' to qualify a statement; often placed before the main verb or after the verb 'to be'.
Learners often use the adjective 'necessary' when the adverb 'necessarily' is required to modify another adjective.
Usage necessarily mean · necessarily coincide · necessarily imply
From necessary + -ly.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.