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Adjective

Inscrutable

IPA /ɪnˈskruːtəbl/

Difficult to understand or interpret, especially because someone’s expression, motives or intentions reveal little. An inscrutable face gives you few clues about what the person is thinking; it does not necessarily mean that the person is dishonest.

See example sentence: Inscrutable

Her inscrutable expression gave us no clue whether she liked the surprise.

Noun

Inefficiency

IPA /ˌɪnɪˈfɪʃənsi/

A failure to use time, effort or resources effectively, so that work takes longer or costs more than it should.

See example sentence: Inefficiency

The report highlighted serious inefficiency in the company’s supply chain.

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