1 with a lot of control and rules that must be obeyed:
She was brought up very strictly. * The industry is strictly regulated.
2 used to emphasize that sth happens or must happen in all circumstances
SYNABSOLUTELY:
Smoking is strictly forbidden. * My letter is, of course, strictly private and confidential.
3 in all details; exactly:
This is not strictly true.
4 used to emphasize that sth only applies to one particular person, thing or situation
SYNPURELY:
We'll look at the problem from a strictly legal point of view. * I know we're friends, but this is strictly business. * Their relationship is strictly platonic.
IDIOMS
strictly speaking if you are using words or rules in their exact or correct sense:
Strictly speaking, the book is not a novel, but a short story. * Using the word in that context is not, strictly speaking, correct.