different between rustless vs lustless

English

Etymology

rust +? -less

Adjective

rustless (not comparable)

1. That does not rust; stainless.
   • 1936, Arthur Guiterman, First Dentistry was Painless

     Now motor roads are dustless,
     The latest steel is rustless,
     Our tennis courts are sodless,
     Our new religions, godless.

2. Without rust; unrusted.
   • 1903, Proceedings of the American Society of Civil Engineers, Volume 29, Part 1

     All this upper work, however, was rustless, and the paint in good condition. The lower and much rusted part of the column […]

Derived terms

• rustlessness

Translations

Anagrams

• tusslers

English

Etymology

From Middle English lustles, equivalent to lust +? -less. Cognate with Dutch lusteloos, German lustlos. Doublet of listless.

Adjective

lustless (comparative more lustless, superlative most lustless)

1. Without sexual lust.
   • 1964, J Z Eglinton, Paul Goodman, Greek Love

     But then, Bergler also claims that there are no genuinely ambi-erotic individuals, only "homosexuals who may be capable of lustless mechanical sex...

2. (obsolete) Lacking vigour; weak; spiritless.