chaste — If you describe a person or their behaviour as chaste, you mean that they do not have sex with anyone, or they only have sex with their husband or wife.
clean — Something that is clean is free from dirt or unwanted marks.
decent — Decent is used to describe something which is considered to be of an acceptable standard or quality.
moral — of, relating to, or concerned with the principles or rules of right conduct or the distinction between right and wrong; ethical: moral attitudes.
pure — free from anything of a different, inferior, or contaminating kind; free from extraneous matter: pure gold; pure water.
bland — If you describe someone or something as bland, you mean that they are rather dull and unexciting.
cold — Something that is cold has a very low temperature or a lower temperature than is normal or acceptable.
