sequentialse·quen·tial /sɪˈkwenʃəl/ adjectiveadj formal happening in a fixed order, where a series of related actions, events etc lead to a particular resultThe buying process is analysed as a series ofsequential steps.
The figures will disappoint investors looking for sequential gains in sales and profits.
—sequentially adverbadvKeep a close eye on sequentially numbered invoices to detect any missing ones.