alternative Synonyms

substitute choice alternate option trapdoor synonym surrogate supplanter supersession reserve underfoot underground understatement understudy unusual variant version vicarial superseding supernaturalist resort second selection solute spare stand-by subrogation substituent substituting substitution substitutive subterranean subterrestrial succedaneum vicarious volition volitional stopgap unorthodox nonequivalent noninterchangeable nonobligatory nontraditional untraditional replacing unconventional shortcut fallback second string selectively