Something obvious is plain to see and easily understandable. It was obvious that you didn't enjoy your meal because I found it rolled in a napkin and shoved under the rug.

There's nothing vague about the adjective obvious — it's right there in front of your eyes! It describes something that's easy to figure out or the most straightforward option. If someone states the obvious, you're likely to respond with a sarcastic "No duh!" or "Thanks Sherlock." If obvious isn't the obvious word of choice, you can try a synonym such as "evident" or "apparent."

Definitions of obvious

adj easily perceived by the senses or grasped by the mind

obvious errors”
apparent, evident, manifest, patent, plain, unmistakable
clearly revealed to the mind or the senses or judgment
axiomatic, self-evident, taken for granted
evident without proof or argument
demonstrable, provable
capable of being demonstrated or proved
clearly manifest; evident
so obvious as to be easily solved or decided
needing no explanation
easily understood or seen through (because of a lack of subtlety)
writ large
made more obvious or prominent
open, overt
open and observable; not secret or hidden
not immediately apparent
not readily apparent
not provable
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