I know that the word spontaneous ans sporadic have two different meanings, but depending on how the two words are use; either noun, adjective, adverb, ect.: can it be said that the two words are similar in meaning or explanation?![]()
No
Context is always important; labelling is rarely important.
Sporadic means unfrequent, rare.
Spontaneous means uncontrived, unconstrained, you could nearly say natural.
I hope it helps