Secret Society Invitation/Dinner Attire

<p>Okay weird question... I just got invited/tapped into the secret society at my school. I was pretty shocked, and wasn't expecting it as a freshmen, especially because I was oblivious to one even existing in my school.</p>

<p>My problem is the attire: semi-formal for a dinner. </p>

<p>I don't think I have anything that would be considered semi-formal in my closet. I do not have a full suit yet, just a navy blazer.</p>

<p>Would I be grossly under dressed if I came to this meeting with a blazer, khakis, and a button-down with a tie?</p>

<p>Any help would be needed!</p>

<p>Dress shirt, tie, pants with belt, and dress shoes is what I would wear so your attire sounds acceptable to me.</p>