tactual

As a noun donor

is one who donates, typically, money.

As an adjective tactual is

of, or relating to the sense of touch; tactile.

As an adjective tactual

is of, or relating to the sense of touch; tactile.

As a noun memorial is

memorial.

As adjectives the difference between tactual and factual

is that tactual is of, or relating to the sense of touch; tactile while factual is of or characterised by or consisting of facts.

As adjectives the difference between actual and tactual

is that actual is existing in act or reality, not just potentially; really acted or acting; occurring in fact while tactual is of, or relating to the sense of touch; tactile.

As a noun actual

is an actual, real one; notably.

As adjectives the difference between haptic and tactual

is that haptic is of or relating to the sense of touch; tactile while tactual is of, or relating to the sense of touch; tactile.

As an adjective tactual

is of, or relating to the sense of touch; tactile.

As a noun impalpability is

the quality of being impalpable; intangibility.