obtuse

As adjectives the difference between obtuse and improvident

is that obtuse is blunt; not sharp while improvident is failing to provide for the future; reckless.

As adjectives the difference between obese and obtuse

is that obese is extremely overweight, especially: weighing more than 20% (for men) or 25% (for women) over their ideal weight determined by height and build; or, having a body mass index over 30 kg/m2 while obtuse is blunt; not sharp.

As adjectives the difference between obtuse and zero

is that obtuse is blunt; not sharp while zero is none.

As a numeral zero is

the cardinal number occurring before one and that denotes no quantity or amount at all, represented in Arabic numerals as 0.

As a noun zero is

the numeric symbol that represents the cardinal number zero.

As a verb zero is

to set a measuring instrument to zero; to calibrate instrument scale to valid zero.

As adjectives the difference between obtuse and ignorant

is that obtuse is blunt; not sharp while ignorant is unknowledgeable or uneducated; characterized by ignorance.

As adjectives the difference between oblong and obtuse

is that oblong is longer than wide while obtuse is blunt; not sharp.

As a noun oblong

is something with an oblong shape.

As adjectives the difference between obtuse and arcane

is that obtuse is blunt; not sharp while arcane is understood by only a few; obscure; requiring secret or mysterious knowledge.

As an adjective obtuse

is blunt; not sharp.

As a noun folly is

foolishness.

As adjectives the difference between astute and obtuse

is that astute is quickly and critically discerning while obtuse is blunt; not sharp.

As adjectives the difference between ostentatious and obtuse

is that ostentatious is of ostentation while obtuse is blunt; not sharp.

As adjectives the difference between tough and obtuse

is that tough is strong and resilient; sturdy while obtuse is blunt; not sharp.

As an interjection tough

is Used to indicate lack of sympathy

As a noun tough

is a person who obtains things by force; a thug or bully.

As a verb tough

is to endure.