alternative
1. [ noun ] (psychology) one of a number of things from which only one can be chosen
Synonyms: choice option
Examples:

"what option did I have?" "there no other alternative" "my only choice is to refuse"

Related terms: decision_making possibility obverse soft_option default_option Hobson's_choice impossibility preference
2. [ adjective ] allowing a choice
Synonyms: alternate
Examples:

"an alternative plan"

Related terms: secondary
3. [ adjective ] necessitating a choice between mutually exclusive possibilities
Synonyms: mutually_exclusive
Examples:

"`either' and `or' in `either this or that'

Related terms: disjunctive
4. [ adjective ] pertaining to unconventional choices
Examples:

"an alternative life style"

Related terms: unconventional
Similar spelling:   alternatively
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  altercate
  Alternanthera
  alteration
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  altercation
  alliterator
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  aleatory