in·form·a·tive

[in-fawr-muh-tiv]
adjective
giving information; instructive: an informative book.
Also, in·form·a·to·ry [in-fawr-muh-tawr-ee, -tohr-ee] .


Origin:
1375–1425; late Middle English: formative < Medieval Latin infōrmātīvus, equivalent to Latin infōrmāt(us) (past participle of infōrmāre to inform1) + -īvus -ive

in·form·a·tive·ly, adverb
in·form·a·tive·ness, noun
non·in·for·ma·tive, adjective
non·in·for·ma·tive·ly, adverb
non·in·for·ma·tive·ness, noun
un·in·form·a·tive, adjective
un·in·form·a·tive·ly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To informative
00:10
Informative is always a great word to know.
So is doohickey. Does it mean:
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a gadget; dingus; thingumbob.
Collins
World English Dictionary
informative or informatory (ɪnˈfɔːmətɪv) [Click for IPA pronunciation guide]
 
adj
providing information; instructive
 
informatory or informatory
 
adj
 
in'formatively or informatory
 
adv
 
in'formativeness or informatory
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Example sentences
Thanks so much for an informative and educational article.
Entertaining, sure, even moderately informative and often correct.
Supply and demand curves are still informative devices.
The blogs they turn to don't have a lot of substance in these areas, even
  though more informative blogs do exist.
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