irrelevant
approaching
asymptotic
brushing
centripetal
centrolineal
concurrent
confluent
confocal
connivent
contacting
contingent
converging
digressive
divergent
extraneous
focal
glancing
grazing
impingent
impinging
in contact
meeting
mutually approaching
nudging
osculatory
peripheral
radial
radiating
rubbing
tangent
touching
uniting
unrelated
2-level
approximate
axial
centrifugal
compressive
concentric
diagonal
fifteen-degree
half-healed
homolytic
hyperbolic
ionisation
ninety-degree
northeasterly
rotational
self-concern
southward
straight-line
transversal
transverse
upward
confidential
consequential
credential
deferential
differential
essential
existential
exponential
inconsequential
influential
jurisprudential
nonessential
nonresidential
potential
preferential
presidential
providential
prudential
quintessential
residential
reverential
sequential
torrential
vice-presidential