flat-out
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About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.flat–out
adjective \ˈflat-ˌau̇t\Definition of FLAT-OUT
1
: being or going at maximum effort or speed
2
: out-and-out, downright <it was a flat–out lie>
See First Known Use of FLAT-OUT
1906
Related to FLAT-OUT
- Synonyms
- all-out, arrant, blank, blooming [chiefly British], bodacious [Southern & Midland], categorical (also categoric), clean, complete, consummate, cotton-picking, crashing, damn, damned, dead, deadly, definite, downright, dreadful, fair, flat, flat-out, out-and-out, outright, perfect, plumb, profound, pure, rank, regular, sheer, simple, stark, stone, straight-out, thorough, thoroughgoing, total, unadulterated, unalloyed, unconditional, unmitigated, unqualified, utter, very
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