Antonym: formal. Similar words: information, formal, normally, inform, format, in force, go in for, reinforce. Meaning: [ɪn'fɔrml / -'fɔːml] 
adj. 1. not formal 2. not officially recognized or controlled 3. used of spoken and written language 4. having or fostering a warm or friendly and informal atmosphere.
adj. 1. not formal 2. not officially recognized or controlled 3. used of spoken and written language 4. having or fostering a warm or friendly and informal atmosphere. 
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211) Informal schools used use the national curriculums talkin curriculum taught in public schools.
212) Once you have reached informal agreement, you should enter into a contract with the other party.
213) For the credit governed by mixed governance, we want to find the creating and maintaining mechanism of informal credit institution.
214) Participation includes informal class discussion the readings and films in - class presentations, and a formal class debate.
215) One of those tweeps is Lindy Dreyer. You might want to also check out her brief list of good people to follow if you are interested in informal learning (provided by Jeff Hurt).
216) The proportional quantification by comparative structures is commonly used in informal English, but some of structures are used in science and technology English with high proportions.
217) Recently, association of Chinese industry economy held informal discussion of circumstance of job of self-discipline of value of industrial guild industry.
218) I really like informal english, it's more casual than formal english.
219) Statistics show that they occur frequently, in both formal and informal English speech and writing.
More similar words: information, formal, normally, inform, format, in force, go in for, reinforce, formation, transformation, mall, small, male, dismal, female, unfold, German, minimal, enforce, on foot, fisherman, chairman, design for, form, norm, supermarket, infant, in full, in fact, malfunction.