Stern
Part of speech: adjective
Definition: having a hardness and severity of nature or manner grim and forbidding in appearance
Part of speech: noun
Definition: The rear part or after end of a ship or vessel.
Example sentence: If you are vigilant and make a stern effort to reject every thought when it rises, you will soon find that you are going deeper and deeper into your own inner self, where there is no need for your effort to reject the thoughts.
Plain
Part of speech: verb
Definition: To lament, bewail.
Part of speech: adverb
Definition: Simply
Part of speech: noun
Definition: An expanse of land with relatively low relief.
Part of speech: adjective
Definition: Flat, level.Ordinary; lacking adornment or ornamentation; unembellished.Evident to one's senses or reason; manifest, obvious, clear, unmistakable.Downright; total, unmistakable (as intensifier).Honest and without deception; candid, open; blunt.Simple in habits or qualities; unsophisticated, not exceptional, ordinary.Not unusually beautiful; unattractive.Having only few ingredients, or no additional ingredients or seasonings; not elaborate, without toppings or extras.Containing no non-printing characters; ASCII code values 32 through 126.
Example sentence: We start out a million years ago in a small community on some grassy plain; we hunt animals, have children, and develop a rich social, sexual, and intellectual life, but we know almost nothing about our surroundings.