Section I: Ratification
In order to take effect, this constitution must be ratified by all five (5) members of the Zetetic Council.
Section II: Amendment
After ratification, this constitution may only be altered by the process of amendment. A Zetetic Council member must put forward the change to the council. Following this, the change must be agreed upon by a four fifths majority.
In extension to what Parsifal said, you'd normally define that something as important as a constitution to be passed by the society members, or at least give them the ability to do it. Otherwise you could end up with a situation a few years down the line that in which a crazy ZC decides to give themselves autocratic powers, and there'd be pretty much nothing anyone could do about it (other than succeeding... again)
Council holds the right to veto nominations for any reason
lol wot
An 80% majority of official members vote in favor of the act
80% is pretty high, even for a super majority. Especially if this is for all members, which are notoriously difficult to get
everyone to vote in...
Up to two council members may be impeached at one time.
What counts as "at one time"? Per council session? Per day?
The Zetetic Council may not be allowed to, at any time, have fewer than three members.
It's not entirely clear what happens if this is the case - you've said that interim elections can take place, but you've also said that ZC can decide against that from happening. So if there are less than 3 members do we just not have a ZC? Do the 1 or 2 elected members have power to prevent an election in this case? What if noone runs in the byelection - do we just not have a ZC?
Moderators will be in charge of managing discussion and enforcing rules.
You haven't defined what these rules are (unless these are defined elsewhere. Soz for my noobiness)