| stand-by(noun, adjective, remedy, alternative, option) |
| tasteless(adjective, offensive, vulgar, cheap, loud) |
| emergency |
| improvisation |
| last resort(noun, expression, idiom, help) |
| undevised(adjective, unprepared) |
| answer |
| awhile(adjective, adverb) |
| briefly(adjective, adverb) |
| changeable(adjective, short, limited, unpredictable, fickle) |
| effort(noun, move, action, control) |
| erratic(adjective, unpredictable, fickle, variable, undependable) |
| erroneous(adjective, unpredictable, fickle, variable, undependable) |
| extempore(adjective, free, informal, casual, impulsive) |
| gimmick(material, instrument, machine, tool, mechanism) |
| imitation(fake, extra, artificial, auxiliary, supernumerary) |
| improvise(informal, unplanned, off-the-cuff) |
| improviso(free, informal, casual, snap, spontaneous) |
| locum tenens(expression, idiom, supply, agent, replacement) |
| off-the-cuff(adjective, informal, spontaneous, offhand, unprepared) |