/ɪndəˈrɛkt sɛks dɪˌskrɪməˈneɪʃən/ – Phrase
Definition: Discrimination based on a characteristic that disproportionately affects one gender over another.
A more throughout explanation: a situation where a person is treated differently or badly because of their gender, but which is not done in an obvious way. For example, where the terms of employment mean that the work would be difficult for someone of a particular sex.
Example: It was held that an employer’s failure to pay male employees additional paternity pay was not indirect sex discrimination.