flattest

adjective

1. 1

   Having no variations in height.

   “The land around here is flat.”

2. 2

   (voice) Without variations in pitch.

3. 3

   Having small or invisible breasts and/or buttocks.

   “That girl is completely flat on both sides.”

4. 4

   (note) Lowered by one semitone.

5. 5

   Of a note or voice, lower in pitch than it should be.

   “Your A string is too flat.”

6. 6

   (of a tire or other inflated object) Deflated, especially because of a puncture.

7. 7

   Uninteresting.

   “The party was a bit flat.”

8. 8

   (of a carbonated drink) With all or most of its carbon dioxide having come out of solution so that the drink no longer fizzes or contains any bubbles.

9. 9

   Lacking acidity without being sweet.

10. 10

    (of a battery) Unable to emit power; dead.

11. 11

    (of a throw) Without spin; spinless.

12. 12

    Lacking liveliness or action; depressed; dull and boring.

    “The dialogue in your screenplay is flat -- you need to make it more exciting.”

13. 13

    Absolute; downright; peremptory.

    “His claim was in flat contradiction to experimental results.”

14. 14

    (of a consonant) sonant; vocal, as distinguished from a sharp (non-sonant) consonant

15. 15

    (grammar) Not having an inflectional ending or sign, such as a noun used as an adjective, or an adjective as an adverb, without the addition of a formative suffix; or an infinitive without the sign "to".

    “Many flat adverbs, as in 'run fast', 'buy cheap', etc. are from Old English.”

16. 16

    (of a golf club) Having a head at a very obtuse angle to the shaft.

17. 17

    (of certain fruits) Flattening at the ends.

18. 18

    (authorship, especially of a character) Lacking in depth, substance, or believability; underdeveloped; one-dimensional.

    “The author added a chapter to flesh out the books' flatter characters.”

19. 19

    Fixed; unvarying.

    “a flat fare on public transport”