unperceived (adj.)
- able
- camouflaged
- concealed
- disguised
- enigmatic
- hidden
- imperceptible
- incalculable
- incognizable
- indiscernible
- insensible
- invisible
- latent
- mysterious
- puzzling
- sealed
- secret
- sightless
- strange
- submerged
- unapparent
- unbeknown
- uncharted
- unclassified
- unconsidered
- undetected
- undisclosed
- undiscoverable
- undiscovered
- unexplained
- unexplored
- unfamiliar
- unfathomed
- unheard
- unheard-of
- unheeded
- unidentified
- unknowable
- unknown
- unmarked
- unnoted
- unnoticed
- unobserved
- unperceivable
- unplumbed
- unrealized
- unremarked
- unrevealed
- unseeable
- unseen
- unsolved
- unsuspected
- unthought-of
- untouched
- untracked
- viewless
- virgin
An age that melts in unperceiv'd decay,
And glides in modest innocence away.
Shade, unperceiv'd, so softening into shade.
