com·ple·men·tal 
(kŏm′plə-mĕntl)
(kŏm′plə-mĕntl)adj.
Having to do with or being a complement.
com′ple·mental·ly adv.
- expectational
- expectative
- expectedly
- expectedness
- expected value
- expectorant
- expectorate
- expectoration
- expediate
- expedience
- expediency
- expedient
- expediential
- whodunit
- whodunnit
- whoever
- whole
- whole blood
- whole-cell vaccine
- whole cloth
- whole enchilada
- whole gale
- wholehearted
- wholeheartedly
- wholeheartedness