(1) Resulting. (2) Important.
None of our discussions thus far has been very consequential; next week's meeting will be the important one.
Something that is consequential follows or comes along with something else. The "resulting" meaning of consequential is usually seen in legal writing. For example, "consequential losses" are losses that are claimed to have resulted from some improper behavior, about which the lawyer's client is suing. But normally consequential means "significant" or "important," and is especially used for events that will produce large consequences or results.