1.anomaly
Meaning: something that is unusual or unexpected: something anomalous
Synonym: aberration, abnormality, exception,
Antonym: norm, ordinary, usual
Example Sentence: We couldn’t explain the anomalies in the test results.
2.Bogus
Meaning: not genuine or true (used in a disapproving manner when deception has been attempted).
Synonym: false, fraudulent, sham, deceptive,
Example Sentence: a bogus insurance claim
3.catharsis
Meaning: the act or process of releasing a strong emotion especially by expressing it in an art form
Synonym: purgation, purification, cleansing
Example Sentence: Acting is a means of catharsis for her.
4.Masquerade
Meaning: a false show or pretense
Synonym: pretense, deception
Antonym: honesty, openness, reality
Example Sentence: I doubt he could have kept up the masquerade for long
5.Serenity
Meaning: Calmness
Synonym: peace, tranquility
Antonym: clamor, din, noise,
Example Sentence: the serenity of the glassy sea soothed the sailors after the big storm.