Heedless non-Baha'is are Ignorants and they are indeed in evident loss.

"Hasten, hasten, O ye firm believers! Hasten, hasten, O ye steadfast! Abandon the heedless, set aside every ignorant, take hold of the strong rope, be firm in this Great Cause, draw light from this Evident Light, be patient and be steadfast in this wise Religion!

Ye shall see the hosts of inspiration descending successively from the Supreme World, the procession of attraction falling incessantly from the heights of heaven, the abundance of the Kingdom of El-Abhá outpouring continually and the teachings of God penetrating with the utmost power, while the heedless are indeed in evident loss."

('Abdu'l-Bahá, Baha'i World Faith, p. 357)