Something that is incipient means beginning to exist or just starting to happen. Insipient is an archaism meaning wanting wisdom, stupid, or foolish. It is almost nowhere to be found in 21st-century English, except as an occasional misspelling of incipient.
Although insipid (from the Latin in- and sapidus, meaning not savory) is sometimes used to mean simply bad, it traditionally means (1) lacking flavor or zest, (2) lacking exciting qualities, or (3) dull.
In a related vein, Pakistan has also seen the emergence of an incipient, albeit still miniscule, civil society. [Foreign Policy]
It is perfectly possible that, for example, adolescents with incipient mental health issues are more likely to take drugs. [Telegraph]
The characters are insipid, the plot is conventional and the production values are ordinary. [Nick Picks Flicks]
Instead, the insipid and farty flavors of boiled beef and cabbage became the signature flavors of his youth. [Christian Science Monitor]