unheralded

adj

1. (not-comparable)Without prior warning; unexpected or unannounced.

   “Union trainmen stopped traffic on six midcontinent railroads with an unheralded strike yesterday, but some railroads said they expected to resume service by early today.”

2. (not-comparable)Not greeted with excitement or acclaim.

   “We all know how genius “Kamp Krusty,” “A Streetcar Named Marge,” “Homer The Heretic,” “Itchy & Scratchy: The Movie” and “Mr. Plow” are, but even the relatively unheralded episodes offer wall-to-wall laughs and some of the smartest, darkest, and weirdest gags ever Trojan-horsed into a network cartoon with a massive family audience.”