ad hoc
adverb
[ ad ˈhɒk ]
• when necessary or needed.
• "the group was constituted ad hoc"
ad hoc
adjective
• created or done for a particular purpose as necessary.
• "the discussions were on an ad hoc basis"
Similar:
impromptu,
extempore,
extemporary,
extemporaneous,
expedient,
emergency,
improvised,
rough and ready,
makeshift,
make-do,
cobbled together,
thrown together,
jury-rigged,
jury,
quick and dirty,
as the need arises,
when necessary,
when needed,
Origin:
Latin, literally ‘to this’.