Synonyms: ad hoc
Definition: for or concerned with one specific purpose
Usage: a coordinated policy instead of ad hoc decisions
Similar words: specific
Definition: (sometimes followed by `to') applying to or characterized by or distinguishing something particular or special or unique
Usage: rules with specific application; demands specific to the job; a specific and detailed account of the accident
Synonyms: ad hoc
Definition: often improvised or impromptu
Usage: an ad hoc committee meeting
Similar words: unplanned
Definition: without apparent forethought or prompting or planning
Usage: an unplanned economy; accepts an unplanned order; an unplanned pregnancy; unplanned remarks