fairytale vs taradiddle

fairytale and taradiddle both are nouns.

Word	Noun	Adjective	Verb	Adverb
fairytale	Yes	No	No	No
taradiddle	Yes	No	No	No

As nouns, taradiddle is a hypernym of fairytale; that is, taradiddle is a word with a broader meaning than fairytale:

fairytale: an interesting but highly implausible story; often told as an excuse
taradiddle: a trivial lie

Other hypernyms of fairytale include fib, story, tale, tarradiddle.

fairytale (noun)	taradiddle (noun)
a story about fairies; told to amuse children	a trivial lie
an interesting but highly implausible story; often told as an excuse	pretentious or silly talk or writing