Simplistic.
I'm pretty sure it's a word.
easy, effortless, light, plain
A plain figure is a simple figure.
The word you're looking for is "spartan." It refers to something that is minimalistic or simple, often lacking in luxury or excess, embodying a straightforward and unadorned style. The term is derived from the austere lifestyle of the ancient Spartans.
If you mean the plural of plane, it is planes. If you mean the spelling of another word that is pronounced the same way, it is plain.
Unattractive, knit, prairie, unadorned are synonyms for the various meanings of "plain".
plain,
Plain.
Plain, simple, in-elaborate , dry, featureless, normal.
The word "plain" in French translates to "simple" or "ordinary" in English.
A seven letter word for plain and simple could be austere. Other synonyms for plain include basic, unadorned, unambiguous, and commonplace.
Another word for a low fertile plain is a steppe.
spartan
spartan
plain
It means simple and plain.
Antonyms for the word ornate: plain, simple
The root word for simplicity is "simple," which comes from the Latin word "simplicis" meaning "plain" or "uncomplicated."