say it: uhn-PLAND
unplanned is an adjective meaning "without apparent forethought or prompting or planning". It carries 2 recorded senses.
without apparent forethought or prompting or planning
“an unplanned economy”
“accepts an unplanned order”
“an unplanned pregnancy”
“unplanned remarks”
not done with purpose or intent
“an unintended slight”
“an unintentional pun”
“the offense was unintentional”
“an unwitting mistake may be overlooked”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for unplanned come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.