difficult

As adjectives the difference between fierce and difficult

is that fierce is extremely violent, severe, ferocious or savage while difficult is hard, not easy, requiring much effort.

As a verb difficult is

to make difficult; to impede; to perplex.

As adjectives the difference between insurmountable and difficult

is that insurmountable is incapable of being passed over, surmounted, or overcome; insuperable; as, insurmountable difficulty or obstacle while difficult is hard, not easy, requiring much effort.

As a verb difficult is

(obsolete|transitive) to make difficult; to impede; to perplex.

As an adjective difficult

is hard, not easy, requiring much effort.

As a verb difficult

is (obsolete|transitive) to make difficult; to impede; to perplex.

As a noun big is

a biological insulation garment; an air-tight, full-body suit intended to prevent the spread of contaminants.

As adjectives the difference between fussy and difficult

is that fussy is anxious or particular about petty details while difficult is hard, not easy, requiring much effort.

As a verb difficult is

(obsolete|transitive) to make difficult; to impede; to perplex.

As adjectives the difference between difficult and strict

is that difficult is hard, not easy, requiring much effort while strict is strained; drawn close; tight.

As a verb difficult

is to make difficult; to impede; to perplex.

As adjectives the difference between convoluted and difficult

is that convoluted is having numerous overlapping coils or folds while difficult is hard, not easy, requiring much effort.

As a verb difficult is

(obsolete|transitive) to make difficult; to impede; to perplex.

As adjectives the difference between fractious and difficult

is that fractious is given to troublemaking while difficult is hard, not easy, requiring much effort.

As a verb difficult is

(obsolete|transitive) to make difficult; to impede; to perplex.

Unfeeling is a related term of difficult.

As adjectives the difference between unfeeling and difficult

is that unfeeling is without emotion or sympathy while difficult is hard, not easy, requiring much effort.

As a verb difficult is

(obsolete|transitive) to make difficult; to impede; to perplex.

As adjectives the difference between stern and difficult

is that stern is having a hardness and severity of nature or manner while difficult is hard, not easy, requiring much effort.

As a noun stern

is the rear part or after end of a ship or vessel.

As a verb difficult is

to make difficult; to impede; to perplex.

As adjectives the difference between stressful and difficult

is that stressful is irritating; causing stress while difficult is hard, not easy, requiring much effort.

As a verb difficult is

to make difficult; to impede; to perplex.