 |
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| without apparent reason (Spontaneous glass breakage is a phenomenon by which toughened glass may spontaneously break without any apparent reason. 4uzhoj); for no apparent cause (ustug80) | |||
| without apparent cause | |||
| unaccountably (igisheva) | |||
| with no single triggering event (Noia) | |||
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| with no apparent cause (ADENYUR) | |||
| unaccountably (igisheva) | |||
| for no apparent reason | |||
| for no apparent cause (Basil Zamorski) | |||
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| for no discernible reason; for no reason at all (Andrey Truhachev) | |||
| без видимой причины: 11 phrases in 4 subjects |
| General | 5 |
| Makarov | 1 |
| Medical | 4 |
| Scientific | 1 |