Aware of, 6 letters
Aware of, slangily, 6 letters
Hardly ignorant of, 6 letters
In on, 6 letters
In the know about, 6 letters
Informed about, 6 letters
Knowing about, 6 letters
Learned about, 6 letters
Not fooled by, 6 letters
Not hoodwinked by, 6 letters
Not in the dark about, 6 letters
Not taken in by, 6 letters
Not tricked by, 6 letters
Suspicious of, 6 letters