In szczesliwego the first two sounds (that is the sounds that correspond to <szcz>) are really difficult to describe and transcribe without the help of the phonetic alphabet :( If you know how to say hi in Polish = czesc then you know the second sound from szczesliwego.
noun. Self deception is defined as the act of lying to yourself or of making yourself believe something that isn't really true. An example of self deception is someone who convinces herself her boyfriend loves her even though he has told her several times he wants to break up.
Definition of deception. 1  1a : the act of causing someone to accept as true or valid what is false or invalid : the act of deceiving resorting to falsehood and deception used deception to leak the classified informationb : the fact or condition of being deceived the deception of his audience.