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systematic

[sis-tuh-mat-ik]
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adjective
  1. having, showing, or involving a system, method, or plan: a systematic course of reading; systematic efforts.
  2. given to or using a system or method; methodical: a systematic person.
  3. arranged in or comprising an ordered system: systematic theology.
  4. concerned with classification: systematic botany.
  5. pertaining to, based on, or in accordance with a system of classification: the systematic names of plants.
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Sometimes sys·tem·at·i·cal.

Origin of systematic

1670–80; < Late Latin systēmaticus < Greek systēmatikós, equivalent to systēmat- (stem of sýstēma) system + -ikos -ic
Related formssys·tem·at·ic·ness, nounsys·tem·at·i·cal·ly, adverbin·ter·sys·tem·at·ic, adjectivein·ter·sys·tem·at·i·cal, adjectivein·ter·sys·tem·at·i·cal·ly, adverbnon·sys·tem·at·ic, adjectivenon·sys·tem·at·i·cal, adjectivenon·sys·tem·at·i·cal·ly, adverbo·ver·sys·tem·at·ic, adjectiveo·ver·sys·tem·at·ic·ness, nouno·ver·sys·tem·at·i·cal·ly, adverbpre·sys·tem·at·ic, adjectivepre·sys·tem·at·i·cal·ly, adverbqua·si-sys·tem·at·ic, adjectivequa·si-sys·tem·at·i·cal·ly, adverbun·sys·tem·at·ic, adjectiveun·sys·tem·at·i·cal, adjectiveun·sys·tem·at·i·cal·ly, adverb
Can be confusedsystematic systemic

Synonyms

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2. See orderly.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for unsystematic

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British Dictionary definitions for unsystematic

systematic

adjective
  1. characterized by the use of order and planning; methodicala systematic administrator
  2. comprising or resembling a systemsystematic theology
  3. Also: systematical (sɪstəˈmætɪkəl) biology of or relating to the taxonomic classification of organisms
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Derived Formssystematically, 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 unsystematic

adj.

1770, from un- (1) "not" + systematic.

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systematic

adj.

1670s, from Late Latin systematicus, from Greek systematikos, from systema (see system). Related: Systematically.

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Online Etymology Dictionary, © 2010 Douglas Harper