There not many adjectives that end in ous. The words here that are adjectives that end in ous, probably would need to be looked up in the dictionary, to even figure out the meaning of them, however they are adjectives. They consist of, obsequious, fastidious, magnanimous, impervious, obstreperous, egregious, ignominious, vociferous, salacious, and incongruous. These words are all adjectives,
. which are words that describe nouns or pronouns. There are some nouns that can change to adjectives, just by adding the letters, ous, at the end of them. For example, "That is a dangerous road", describes what type of road it is. There's also, humorous, marvelous, poisonous, and slanderous, just to name a few. To say "That is a poisonous snake", the word, poisonous, is the adjectives that describes the word, snake, which is the noun in this sentence. Words such as, adventurous, mischievous, are also adjectives.
