Term: waste of effort: a useless effort
Candidate hypernym: entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving) → 1
Candidate hypernym: boltzmann's constant: constant used in the calculation of the ideal gas constant → 0
Candidate hypernym: calophyllum: genus of tropical evergreen trees → 0
Candidate hypernym: millennium: a span of 1000 years → 0
Candidate hypernym: holm oak: evergreen oak of southern Europe having leaves somewhat resembling those of holly; yields a hard wood → 0
Candidate hypernym: primality: the property of being a prime number → 0
Candidate hypernym: archosargus: a genus of Sparidae → 0
Candidate hypernym: puffbird: brownish tropical American bird having a large head with fluffed out feathers → 0
Candidate hypernym: shirttail: a brief addendum at the end of a newspaper article → 0
Candidate hypernym: hard disc: a rigid magnetic disk mounted permanently in a drive unit → 0
Candidate hypernym: green revolution: the introduction of pesticides and high-yield grains and better management during the 1960s and 1970s which greatly increased agricultural productivity → 0