a. (UN-1 7.)
1709. Rowe, Shaksperes Cymb., I. vii. 127. An Eye, Base and unlustrious [sic; 1623 illustrious] as the smoaky Light Thats fed with stinking Tallow.
1790. Anna Seward, Lett. (1811), II. 378. How dim and unlustrous is Mr. Merrys muse!
1863. W. Lancaster, Præterita, 70. Sweet unlustrous eyes.