These two are synonyms: bland, insipid
The King is giving Macbeth the title; the Thane of Cawdor. Who had Macbeth and Banquo been fighting? He instructs Ross to go execute the Thane of Cawdor, so that the King can give the title to Macbeth and the Thane of Cawdor has been disloyal to the King.
Based on the given sentence above, the verb that is used here is "will have been traveling". This verb is in the tense form of f<span>uture perfect progressive tense, meaning that the action here is in the future and it is ongoing that will happen in some specified time in the future. Hope this helps.</span>