Main entry: affected, unnatural
Definition: speaking or behaving in an artificial way to make an impression
Antonyms: unaffected
Definition: free of artificiality; sincere and genuine
Antonyms: natural
Definition: existing in or produced by nature; not artificial or imitation
Main entry: unnatural
Definition: not in accordance with or determined by nature; contrary to nature
Usage: an unnatural death; the child's unnatural interest in death
Antonyms: natural
Definition: in accordance with nature; relating to or concerning nature
Antonyms: nonviolent
Definition: abstaining (on principle) from the use of violence
Main entry: unnatural, abnormal
Definition: not normal; not typical or usual or regular or conforming to a norm
Usage: abnormal powers of concentration; abnormal amounts of rain; abnormal circumstances; an abnormal interest in food
Antonyms: normal
Definition: conforming with or constituting a norm or standard or level or type or social norm; not abnormal
Antonyms: regular
Definition: in accordance with fixed order or procedure or principle
Antonyms: regular
Definition: (of solids) having clear dimensions that can be measured; volume can be determined with a suitable geometric formula
Antonyms: regular
Definition: (used of the military) belonging to or engaged in by legitimate army forces
Antonyms: conform
Definition: be similar, be in line with
Antonyms: typical
Definition: exhibiting the qualities or characteristics that identify a group or kind or category