The methodology was not applicable to the problem. The new curfew is applicable to everyone under the age of eighteen.
Synonyms: applicative, applicatory, apposite, apropos, apt, associable, befitting, felicitous, fit, fitting, germane, kosher, legit, material, on target, on the button, on the nose, pertinent, relevant, right on, suitable, suited, that's the idea, that's the ticket, to the point, to the purpose, useful
Many products become obsolete after a few years. Computers have made typewriters obsolete.
Synonyms: anachronistic, ancient, antediluvian, antiquated, antique, archaic, bygone, dated, dead, dead and gone, kaput, moldy, moth-eaten, old, old-fashioned, old-hat, old-school, out*, out-of-date, out-of-fashion, outmoded, outworn, passé, stale, superannuated, superseded, timeworn, unfashionable
Notes: things that are no longer used or needed are obsolete ; things that are becoming obsolete are obsolescent
Antonyms: contemporary, current, in vogue, modern, new, present, up-to-date
having a bearing on or connection with the subject at issue
Homework should be relevant to the course activities. A person's eye color is not relevant to his or her musical tastes.
Synonyms: accordant, ad rem, admissible, allowable, applicable, applicatory, apposite, appurtenant, apt, important, material, on the button, on the nose, pat, pertaining to, pertinent, pointful, proper, referring, related, relative, significant, suitable, suited, to the point, weighty
Antonyms: inappropriate, irrelevant, unsuitable