adjective, formal - not easily noticed (in a good way)

noun - (especially in combination with 'dental') a person whose job is to clean people's teeth

adjective - not flowing or moving (water, air etc.)

adverb - in a way that is sanitary, clean and free from things that could cause infection or other health problems

verb - to examine something/somebody very carefully

noun, British English - the part of a ticket, cheque or other document that is kept as a record of purchase

noun - a person who forges something

adjective, formal - made to look exactly like the original in order to deceive people

verb, formal - to make a copy of something in order to deceive people

adjective - lasting a very long time and so boring

noun, formal - something that is made to look like the original in order to deceive people

adjective - cannot be cured

adjective - behaving in a silly way when such behaviour is not suitable

adjective - unwilling to listen to ideas that are different from your own

adverb - expressed clearly and openly