(a.) Pertaining to the sense of touch; perceptible by the touch; capable of being touched; as, tactile sensations\.

apparent appreciable arresting believable certain clear clear as crystal colorable concrete credible crystal-clear detectable discernible distinct evident explicit express indisputable indubitable manifest material noticeable observable obvious open-and-shut ostensible patent perceivable perceptible perspicuous plain plain as day plausible ponderable positive real remarkable seeable seeming self-evident self-explaining self-explanatory sensible solid straightforward striking substantial substantive sure tactile tangible to be seen touchable unequivocal unmistakable visible weighable