problem

As nouns the difference between nonconformance and problem

is that nonconformance is failure to conform while problem is problem.

As nouns the difference between irregularity and problem

is that irregularity is (countable) an instance of being irregular while problem is problem.

As nouns the difference between problem and inconvenience

is that problem is problem while inconvenience is the quality of being inconvenient.

As a verb inconvenience is

to bother; to discomfort.

As nouns the difference between option and problem

is that option is option while problem is problem.

As nouns the difference between controversy and problem

is that controversy is a debate, discussion of opposing opinions; strife while problem is a difficulty that has to be resolved or dealt with.

As an adjective problem is

difficult to train or guide; unruly.

As nouns the difference between contradictions and problem

is that contradictions is while problem is problem.

As nouns the difference between problem and discrepancy

is that problem is problem while discrepancy is an inconsistency between facts or sentiments.

As nouns the difference between shortcoming and problem

is that shortcoming is deficiency while problem is a difficulty that has to be resolved or dealt with.

As an adjective problem is

difficult to train or guide; unruly.

As adjectives the difference between problem and troublesome

is that problem is difficult to train or guide; unruly while troublesome is giving trouble or anxiety; vexatious; burdensome; wearisome.

As a noun problem

is a difficulty that has to be resolved or dealt with.

As nouns the difference between problem and challengee

is that problem is a difficulty that has to be resolved or dealt with while challengee is one to whom a challenge is made.

As an adjective problem

is difficult to train or guide; unruly.