Definition of owlishness in US English:

owlishness

noun

  • See owlish

    • ‘They will remember his kindliness, his moodiness, his scorn, his patience, his owlishness, the bulk of his physical presence with its powers of intimidation and tact.’
    • ‘It is more and more unusual for U.S. writers to try to produce literature which is serious without solemnity, entertaining without shallowness, intelligent without owlishness.’