| fast | (adjective) acting or moving or capable of acting or moving quickly | - |
|---|
| (adjective) at a rapid tempo | - |
| (adjective) (used of timepieces) indicating a time ahead of or later than the correct time | - |
| (adjective) (of a photographic lens or emulsion) causing a shortening of exposure time | - |
| (adjective) unwavering in devotion to friend or vow or cause | Synonyms: firm, loyal, truehearted |
| (adjective) securely fixed in place | Synonyms: firm, immobile |
| (adjective) hurried and brief | Synonyms: flying, quick |
| (adjective) unrestrained by convention or morality | Synonyms: debauched, degenerate, degraded, dissipated, dissolute, libertine, profligate, riotous |
| (adjective) resistant to destruction or fading | - |
| (adjective) (of surfaces) conducive to rapid speeds | - |
| fastened | (adjective) firmly closed or secured | - |
|---|
| (adjective) furnished or closed with buttons or something buttonlike | Synonyms: buttoned |
| (adjective) fastened with strings or cords | Synonyms: tied |
| fastidious | (adjective) giving careful attention to detail; hard to please; excessively concerned with cleanliness | - |
|---|
| (adjective) having complicated nutritional requirements; especially growing only in special artificial cultures | Synonyms: exacting |
| fastigiate | (adjective) having clusters of erect branches (often appearing to form a single column) | - |
|---|