【Last】 ,  【latest】 ,  【final】 ,  【terminal】 ,  【concluding】 ,  【eventual】 ,  【ultimate】  are comparable when they mean following all the others in time or order or in importance.

What is  【last】 comes at the end of a series, especially of things of the same kind or class; the term usually implies that no more will follow or have followed, but it may imply only that the thing so qualified is or was the most recent or is the closest or nearest with respect to the present or a given time or period.

In this latter sense  【latest】  may be preferred as less ambiguous; thus, "his  【latest】  book" is clearer than "his  【last】 book" since the latter wording might suggest the author’s ensuing death.

What is  【final】 definitely closes a series or process not only because it is the 【last】 in order of individuals or details, but because it is decisive or conclusive.

What is  【terminal】 comes at the end of something and marks the limit of its extension, its growth, or its completion as a series or process.

What is  【concluding】 brings something (as a speech, a book, a program, a celebration) to an end or marks its finish.

What is  【eventual】 is bound to follow as the 【final】 effect of causes already in operation or of causes that will be operative if a given or understood contingency occurs.

What is  【ultimate】 (see also  【ULTIMATE】 2 ) is the 【last】 , 【final】 , or 【terminal】 element in a series or process or is the 【final】 outcome or end to which a person or thing is moving or working or is the most remote in time, either past or future, or most important in a scale of values.