Definition of owlishness in English:

owlishness

noun

See owlish

‘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.’
  • ‘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.’