insignificant

As a noun rejection

is the act of rejecting.

As an adjective insignificant is

not significant; not important, consequential, or having a noticeable effect.

As an adjective insignificant

is not significant; not important, consequential, or having a noticeable effect.

As a verb rejected is

(reject).

As a noun indifference

is indifference, uncaringness.

As an adjective insignificant is

not significant; not important, consequential, or having a noticeable effect.

As adjectives the difference between insignificant and faint

is that insignificant is not significant; not important, consequential, or having a noticeable effect while faint is lacking strength; weak; languid; inclined to swoon; as, faint with fatigue, hunger, or thirst.

As a noun faint is

the act of fainting.

As a verb faint is

to lose consciousness caused by a lack of oxygen or nutrients to the brain, usually as a result of a suddenly reduced blood flow (may be caused by emotional trauma, loss of blood or various medical conditions).

Insignificant is a synonym of inferior.

As adjectives the difference between insignificant and inferior

is that insignificant is not significant; not important, consequential, or having a noticeable effect while inferior is of lower quality.

As a noun inferior is

a person of lower stature to another.

Insignificant is a related term of subordinate.

As adjectives the difference between insignificant and subordinate

is that insignificant is not significant; not important, consequential, or having a noticeable effect while subordinate is placed in a lower class, rank, or position.

As a noun subordinate is

(senseid)(countable) one who is subordinate.

As a verb subordinate is

to make subservient.

As adjectives the difference between inadequate and insignificant

is that inadequate is while insignificant is not significant; not important, consequential, or having a noticeable effect.

As adjectives the difference between minuscule and insignificant

is that minuscule is written in minuscules, lower-case while insignificant is not significant; not important, consequential, or having a noticeable effect.

As a noun minuscule

is a lower-case letter.

As adjectives the difference between insignificant and prominent

is that insignificant is not significant; not important, consequential, or having a noticeable effect while prominent is standing out, or projecting; jutting; protuberant.

As adjectives the difference between immaterial and insignificant

is that immaterial is having no matter or substance while insignificant is not significant; not important, consequential, or having a noticeable effect.