obligatory

As adjectives the difference between obligatory and astringent

is that obligatory is imposing obligation, morally or legally; binding while astringent is sharp, caustic, severe.

As a noun astringent is

a substance which draws tissue together, thus restricting the flow of blood.

As adjectives the difference between spontaneous and obligatory

is that spontaneous is self-generated; happening without any apparent external cause while obligatory is imposing obligation, morally or legally; binding.

As adjectives the difference between obligatory and obligatory

is that obligatory is imposing obligation, morally or legally; binding while obligatory is imposing obligation, morally or legally; binding.

As a verb plead

is to present an argument, especially in a legal case.

As an adjective obligatory is

imposing obligation, morally or legally; binding.

As adjectives the difference between responsible and obligatory

is that responsible is answerable for an act performed or for its consequences; accountable; amenable, especially legally or politically while obligatory is imposing obligation, morally or legally; binding.

As adjectives the difference between statutory and obligatory

is that statutory is of, relating to, enacted or regulated by a statute while obligatory is imposing obligation, morally or legally; binding.

Obligatory is a related term of bound.

As adjectives the difference between obligatory and bound

is that obligatory is imposing obligation, morally or legally; binding while bound is (with infinitive) obliged (to) or bound can be (obsolete) ready, prepared.

As a verb bound is

(bind) or bound can be to surround a territory or other geographical entity or bound can be to leap, move by jumping.

As a noun bound is

(often|used in plural) a boundary, the border which one must cross in order to enter or leave a territory or bound can be a sizeable jump, great leap.

As an adjective obligatory

is imposing obligation, morally or legally; binding.

As a verb restraining is

present participle of lang=en.

As a noun restraining is

the act by which someone or something is restrained.

Obligatory is a related term of stringent.

As adjectives the difference between obligatory and stringent

is that obligatory is imposing obligation, morally or legally; binding while stringent is strict; binding strongly; making strict requirements; restrictive; rigid; severe.

Decisive is a related term of obligatory.

As adjectives the difference between decisive and obligatory

is that decisive is while obligatory is imposing obligation, morally or legally; binding.