| Continuous discourse, either written or spoken, inefficacious as a means of instruction to the ignorant. |
| Travellers bought saintly figurines as souvenirs and guidebooks warning them of treacherous routes, fetid streams, and inefficacious relics. |
| And what do you think he's goin' to do with them inefficacious knick-knacks? |
| Then I just started wittering in a pretty inefficacious way at the Carribean customer service woman. |
| Religious self-instruction is considered inefficacious. |
| The ambitious but inefficacious poor soul has tried his best. |
