Synonyms:
- breakaway,
- imageless,
- involuntary,
- offbeat,
- rare,
- recherche,
- sui generis,
- uncommon,
- unconceived,
- unconceptualized,
- unconscious,
- unconsidered,
- uncustomary,
- undescried,
- undesigned,
- undreamed-of,
- unexpected,
- unfamiliar,
- unguarded,
- unguided,
- unheard-of,
- unheeded,
- unimaged,
- unimagined,
- unintended,
- unintentional,
- unique,
- unmarked,
- unmeant,
- unmeditated,
- unminded,
- unmissed,
- unnoted,
- unnoticed,
- unobserved,
- unordinary,
- unperceived,
- unplanned,
- unpremeditated,
- unprompted,
- unpurposed,
- unregarded,
- unremarked,
- unseen,
- unthinking,
- unusual,
- unwitting,
- unwonted