Table of Contents POS
WORDNET DICTIONARY
OXFORD DICTIONARY
THESAURUS

WORDNET DICTIONARY

Adjective unplanned has 2 senses

• unplanned(a = adj.all) Array - without apparent forethought or prompting or planning; "an unplanned economy"; "accepts an unplanned order"; "an unplanned pregnancy"; "unplanned remarks"
Antonym: planned

• unplanned(s = adj.all) unintentional, unwitting - not done with purpose or intent; "an unintended slight"; "an unintentional pun"; "the offense was unintentional"; "an unwitting mistake may be overlooked"

OXFORD DICTIONARY

THESAURUS

unplanned

ad-lib, aimless, caught napping, caught off balance, caught short, designless, desultory, extemporaneous, extemporized, haphazard, hasty, hit-or-miss, impromptu, improvised, inadvertent, indiscriminate, involuntary, makeshift, precipitate, purposeless, rough-and-ready, snap, surprised, taken aback, taken by surprise, taken unawares, tripped up, unarranged, unbegun, unconcocted, unconscious, unconsidered, uncontrived, undeliberated, undesigned, undevised, unguarded, unguided, unhatched, unintended, unintentional, unmade, unmanufactured, unmeant, unmeditated, unorganized, unpremeditated, unprepared, unprimed, unprompted, unpurposed, unready, unstudied, unthinking, unthought, unthought-of, unwitting

For further exploring for "unplanned" in Webster Dictionary Online