Uncountable Nouns That Start with OB and End with S

Explore 24 verified English uncountable nouns starting with OB and ending with S, including Obstetrics, Obviousness, Obliviousness, Obsessiveness, Obscureness, Obtuseness and Obnoxiousness. Sort these mass nouns and non-count terms for substances and concepts by word length for quantifier accuracy, academic writing, and ESL study below, or check quantifier and measurement rules in our noun grammar guide.