perkiness|ˈpɜːkɪnɪs| [f. perky a. + -ness.] The quality of being perky; self-assertiveness; ‘cockiness’; liveliness. 1883Hall Caine Cobwebs Crit. v. 149 His [poetry]..was more open to the charge of cheerful perkiness.1885Huxley in Life (1900) II. vii. 104 The perkiness of last week was only a spurt.