behind the curtain behind the scenes camouflaged concealed disguised hidden ignotus imperceptible indiscernible inglorious insensible invisible latent little known nameless no credit to obscure out of sight overlooked renownless secret sightless submerged unapparent unbeheld unbeholdable uncelebrated unconsidered undescried undiscernible undiscovered undistinguished unfamed unglorified unheard unheard-of unheeded unhonored unknown unmarked unminded unmissed unnotable unnoted unobserved unperceivable unperceived unpopular unrealized unregarded unremarked unrenowned unseeable unseen unsung unthought-of unviewed unwitnessed viewless