| Subject | English | Japanese |
| comp., MS | optimistic concurrency | オプティミスティック同時実行制御 (A type of locking in which the data page or row containing one or more records (rows) -- (including the data being edited) -- is unavailable to other users only while the data is being updated, but is available between the Edit and Update operations) |
| comp., MS | optimistic concurrency | オプティミスティック同時実行 (A method of managing concurrency by using a cached object's version information. Because every update to an object changes its version number, using version information prevents the update from overwriting someone else's changes) |
| comp., MS | optimistic duration The best-case possibility for the total span of active working time expected for a task, that is, the amount of time from the optimistic start to optimistic finish of a task | 期間 (楽観値, きかん) |
| gen. | n optimistic view of life | 楽天観 |
| gen. | n over-optimistic calculation | 皮算用 news2 nf26 |
| gen. | exp adj-i overly optimistic | 読みがあまい |
| gen. | exp adj-i overly optimistic | ヨミが甘い |
| gen. | exp adj-i overly optimistic | 読みが甘い |
| gen. | overly optimistic | 甘い ichi1 news1 nf19 (あまい) |
| gen. | n vs taking an optimistic view | 楽観視 |