55 entries under adjective topic. ×

16
functional(practical, running, working, operative)
13
operative(active, practical, effective, running)
12
operating(active, practical, working, operative)
11
active(running, working, operative, functioning)
11
in operation(expression, idiom, active, effective)
9
operable
9
usable
8
working(practical, running, unaffected, operative)
8
functioning(active, practical, effective, running)
7
effective(active, running, working, operative)
6
going(running, working, happening, operative)
6
in working order(expression, idiom, functional)
6
practical(running, working, functional, functioning)
6
running(verb, practical, working, operative)
6
useable
5
in force(expression, idiom, active, running)
5
serviceable
4
efficacious
4
viable(running, functional, functioning)
4
workable
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APASmart Define. (2015). operational thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/operational/thesaurus/synonyms
ChicagoSmart Define. 2015. "operational thesaurus" https://smartdefine.org/operational/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, operational thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/operational/thesaurus/synonyms>.
MLASmart Define. "operational thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/operational/thesaurus/synonyms>