Collins COBUILD Advanced Learner’s Dictionary

1 ADJ [ADJ after v, ADJ n, v-link ADJ ] If an injury or illness is left untreated , it is not given medical treatment. □  If left untreated, the condition may become chronic. □  …the consequences of untreated tuberculosis.

2 ADJ [usu ADJ n] Untreated materials, water, or chemicals are harmful and have not been made safe. □  …the dumping of nuclear waste and untreated sewage.

3 ADJ [usu ADJ n] Untreated materials are in their natural or original state, often before being prepared for use in a particular process. □  All the bedding is made of simple, untreated cotton. □  In its untreated state the carbon fibre material is rather like cloth.

un|tried /ʌ ntra I d/ ADJ If someone or something is untried , they have not yet experienced certain situations or have not yet been tried out, so you do not know what they will be like. □  He was young and untried, with no reputation of his own. □  …a long legal battle through untried areas of law.

un|trou|bled /ʌ ntrʌ b ^ə ld/ ADJ If you are untroubled by something, you are not affected or worried by it. □ [+ by ] She is untroubled by the fact that she didn't win. □  …an untroubled night's sleep.

un|true /ʌ ntruː / ADJ [usu v-link ADJ ] If a statement or idea is untrue , it is false and not based on facts. □  The allegations were completely untrue. □  It was untrue to say that all political prisoners have been released. □  Such remarks are both offensive and untrue.

un|trust|wor|thy /ʌ ntrʌ stwɜː ^r ði/ ADJ If you say that someone is untrustworthy , you think they are unreliable and cannot be trusted. □  I think he is shallow, vain and untrustworthy. □  His opponents still say he's a fundamentally untrustworthy figure.

un|truth /ʌ ntruː θ/ (untruths /ʌ ntruː ðz/) N‑VAR An untruth is a lie. [FORMAL ] □  The Advertising Standards Authority accused estate agents of using blatant untruths. □  I have never uttered one word of untruth.

un|truth|ful /ʌ ntruː θfʊl/ ADJ If someone is untruthful or if they say untruthful things, they are dishonest and say things that they know are not true. □  He must not be untruthful, or a coward. □  Some people may be tempted to give untruthful answers.

un|tu|tored /ʌ ntjuː tə ^r d, [AM ] -tuː t-/ ADJ If someone is untutored , they have not been formally trained to do something, although they may be quite skilled at it. [FORMAL ] □  This untutored mathematician had an obsession with numbers. □ [+ in ] They had left school at fifteen and were quite untutored in writing.

un|typi|cal /ʌ nt I p I k ^ə l/ ADJ [usu v-link ADJ ] If someone or something is untypical of a particular type of person or thing, they are not a good example of the way that type of person or thing normally is. People sometimes say something is not untypical when they mean that it is quite normal. □ [+ of ] Anita Loos was in many respects untypical of the screenwriting trade. □  I believe our results are not untypical. ●  un|typi|cal|ly /ʌ nt I p I kli/ ADV [ADV adj/-ed] □  Untypically for a man in that situation he became interested in Buddhism.

un|us|able /ʌ njuː zəb ^ə l/ ADJ Something that is unusable is not in a good enough state or condition to be used. □  Bombing had made roads and railways unusable.

un|used Pronounced /ʌ njuː zd/ for meaning 1 , and /ʌ njuː st/ for meaning 2 . 1 ADJ [ADJ n, ADJ after v, v-link ADJ ] Something that is unused has not been used or is not being used at the moment. □  …unused containers of food and drink.