Collins COBUILD Advanced Learner’s Dictionary

un|so|ciable /ʌnsoʊ ʃəb ^ə l/ ADJ Someone who is unsociable does not like talking to other people and tries to avoid meeting them. □  The experience has made me reclusive and unsociable. □  I am by no means an unsociable person.

un|so|cial /ʌnsoʊ ʃ ^ə l/ ADJ If someone works unsocial hours, they work late at night, early in the morning, at weekends, or on public holidays. In Britain, people are often paid extra for working unsocial hours. [BRIT ]

un|sold /ʌ nsoʊ ld/ ADJ Unsold goods have been available for people to buy but nobody has bought them. □  …piles of unsold books. □  20,000 tickets remain unsold for the game on Saturday.

un|so|lic|it|ed /ʌ nsəl I s I t I d/ ADJ [usu ADJ n] Something that is unsolicited has been given without being asked for and may not have been wanted. □  Ignore relatives who will give you lots of unsolicited advice.

un|solved /ʌ nsɒ lvd/ ADJ An unsolved mystery or problem has never been solved. □  …America's unsolved problems of poverty and racism. □  David's murder remains unsolved.

un|so|phis|ti|cat|ed /ʌ nsəf I st I ke I t I d/

1 ADJ Unsophisticated people do not have a wide range of experience or knowledge and have simple tastes. □  It was music of a rather crude kind which unsophisticated audiences enjoyed listening to. □ [+ in ] She was quite unsophisticated in the ways of the world.

2 ADJ An unsophisticated method or device is very simple and often not very effective. □  …an unsophisticated alarm system.

un|sound /ʌ nsaʊ nd/

1 ADJ [usu v-link ADJ ] If a conclusion or method is unsound , it is based on ideas that are wrong. □  The thinking is good-hearted, but muddled and fundamentally unsound. □  The national tests were educationally unsound.

2 ADJ If something or someone is unsound , they are unreliable. □  No sensible person would put his money in a bank he knew to be unsound.

3 ADJ [usu v-link ADJ , usu adv ADJ ] If you say that something is unsound in some way, you mean that it is damaging in that way or to the thing mentioned. □  The project is environmentally unsound. □  A diet extremely low in calories can also be a diet that is nutritionally unsound.

4 ADJ [usu v-link ADJ ] If a building or other structure is unsound , it is in poor condition and is likely to collapse. □  The church was structurally unsound.

un|speak|able /ʌnspiː kəb ^ə l/ ADJ If you describe something as unspeakable , you are emphasizing that it is extremely unpleasant. [EMPHASIS ] □  …the unspeakable horrors of chemical weapons. □  …unspeakable crimes. ●  un|speak|ably /ʌnspiː kəbli/ ADV [usu ADV adj] □  The novel was unspeakably boring.

un|speci|fied /ʌnspe s I fa I d/ ADJ [usu ADJ n] You say that something is unspecified when you are not told exactly what it is. □  The government said an unspecified number of bandits were killed. □  He was arrested on unspecified charges.

un|spec|tacu|lar /ʌ nspektæ kjʊlə ^r / ADJ If you describe something as unspectacular , you mean that it is rather dull and not remarkable in any way. □  His progress at school had been unspectacular compared to his brother. □  …pleasant, if largely unspectacular, countryside.

un|spoiled /ʌ nspɔ I ld/ in BRIT, also use unspoilt /ʌ nspɔ I lt/ ADJ If you describe a place as unspoiled , you think it is beautiful because it has not been changed or built on for a long time. □  The port is quiet and unspoiled. □  …the unspoiled island of Cozumel.

un|spo|ken /ʌ nspoʊ kən/