alphabetical

or al·pha·bet·ic

[al-fuh-bet-i-kuh l or al-fuh-bet-ik]
adjective
  1. in the order of the letters of the alphabet: alphabetical arrangement.
  2. pertaining to, expressed by, or using an alphabet:alphabetical writing.

Origin of alphabetical

First recorded in 1560–70; alphabet + -ical
Related formsal·pha·bet·i·cal·ly, adverbnon·al·pha·bet·ic, adjectivenon·al·pha·bet·i·cal, adjectivenon·al·pha·bet·i·cal·ly, adverbpre·al·pha·bet·i·cal, adjectivepre·al·pha·bet·i·cal·ly, adverbun·al·pha·bet·ic, adjectiveun·al·pha·bet·i·cal, adjectiveun·al·pha·bet·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for non-alphabetical

alphabetical

alphabetic

adjective
  1. in the conventional order of the letters or symbols of an alphabet
  2. of, characterized by, or expressed by an alphabet
Derived Formsalphabetically, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for non-alphabetical

alphabetical

adj.

1560s, from alphabet + -ical. Related: Alphabetically.

Online Etymology Dictionary, © 2010 Douglas Harper