What part of speech is “simple”

as an adjective, simple describes something that is easy to understand or explain, not complicate.

when simple is used as an adjective, it usually precedes a noun; for example, 'a simple explanation,' or 'a simple problem.'

1. This simple recipe takes only three ingredients.

2. She has a simple solution to the problem.

when using simple as an adverb, it's important to remember that it usually follows a verb, rather than preceding it; for example, not 'simply she explained,' but 'she simply explained.' Additionally, simple is often misused in place of 'easy'; for example, instead of saying 'a simple math problem,' it's more accurate to say 'an easy math problem.'