omissible Definition

omit
verb omitted, omitting

1. To leave something out, either by mistake or on purpose.

Thesaurus: leave out, drop, edit out, exclude, pass over, delete, eliminate, skip, cancel, void, ignore, overlook, disregard.
2. To fail to do something.

Derivative: omissible
adj

Referring to something that may be omitted.

Etymology: 15c: from Latin omittere, from ob- in front + mittere to send.