viable (adj.)
- aboveground
- acceptable
- achievable
- actable
- activating
- admissible
- agreeable
- alive
- alright
- animate
- animated
- animating
- applicable
- attainable
- bracing
- breathing
- conscious
- doable
- energizing
- enlivened
- enlivening
- exhilarating
- existent
- feasible
- invigorating
- live
- living
- long-lived
- manageable
- maneuverable
- negotiable
- okay
- operable
- passable
- possible
- practicable
- practical
- quick
- realizable
- reasonable
- rousing
- sensible
- stimulating
- stimulative
- superable
- supportable
- surmountable
- sustainable
- tenable
- tonic
- unexceptionable
- unobjectionable
- vital
- vitalizing
- workable
