obtuse

As adjectives the difference between nonsensical and obtuse

is that nonsensical is without sense; unmeaning; absurd; foolish; irrational; preposterous while obtuse is blunt; not sharp.

As adjectives the difference between obtuse and unreasoning

is that obtuse is blunt; not sharp while unreasoning is behaving without reason.

In geometry terms the difference between oblique and obtuse

is that oblique is an oblique line while obtuse is of a triangle: with one obtuse angle.

As a noun oblique

is an oblique line.

As a verb oblique

is to deviate from a perpendicular line; to move in an oblique direction.

Obtuse is a related term of cretinous.

As adjectives the difference between obtuse and cretinous

is that obtuse is blunt; not sharp while cretinous is characteristic of a cretin; very stupid.

As adjectives the difference between obtuse and inert

is that obtuse is blunt; not sharp while inert is unable to move or act; inanimate.

As a noun inert is

(chemistry) a substance that does not react chemically.

As adjectives the difference between obtuse and fatuous

is that obtuse is blunt; not sharp while fatuous is obnoxiously stupid, vacantly silly, content in one's foolishness.

As adjectives the difference between obtuse and opaque

is that obtuse is blunt; not sharp while opaque is neither reflecting nor emitting light.

As a noun opaque is

an area of darkness; a place or region with no light.

As a verb opaque is

to make, render (more) opaque.

As adjectives the difference between torpid and obtuse

is that torpid is unmoving, dormant or hibernating while obtuse is blunt; not sharp.