# Could “curved” be the opposite of “flat”?

What is the opposite of flat? and is it curved?

e.g.

• the tabletop is flat

• the tabletop is (not flat or curved).

In other examples could curved be the opposite?

• Almost a duplicate of what is the opposite of the word 'flat'? (In particular, look at @J.R. 's answer, which was composed before the original poster mentioned that he was describing fungus colonies.) – Adam Feb 17 '15 at 16:08
• I am retracting my close vote, because J.R.'s list does not specifically include "curved." Still read it, though. – Adam Feb 17 '15 at 16:11
• No close votes on this one! Dicts don't say it that simply, so please don't close this blindfoldedly! – M.A.R. Feb 17 '15 at 16:13

Curved and flat can be direct antonyms in certain cases, but they usually aren't.

As related to a tabletop, the proper antonym would be uneven, not curved, because tabletops are flat by definition. A curved table would mean that the tabletop is not rectangular or oval in shape, or that it has rounded edges. Something similar to a table but with a vertically curved surface would be a basin or perhaps a bowl or dish.

In mathematics, one can use curved and flat as antonyms for describing the slope or rate of change of the graphs of functions (which are generally called curves). Here's an example on ELU suggesting flat and curved as antonyms in the context of learning curve.

Outside of technical ones, I can't think of any cases where curved and flat are properly used as antonyms.

• Describing the horizon as you gain altitude? – WhatRoughBeast Feb 18 '15 at 2:51

Flat has many antonyms, one of which is curved. Example:

### Are curved TVs any better than flat TVs?

After years of pushing ever-flatter, thinner TVs, manufacturers are throwing buyers a curve—literally, with curved-screen sets. …

If the table top is unintentionally not flat, I'd probably say that it is "warped".