doubt

As nouns the difference between sceptic and doubt

is that sceptic is someone who is undecided as to what is true and enquires after facts while doubt is uncertainty, disbelief.

As a verb doubt is

to lack confidence in; to disbelieve, question, or suspect.

Surmise is a related term of doubt.

As verbs the difference between surmise and doubt

is that surmise is while doubt is (ambitransitive) to lack confidence in; to disbelieve, question, or suspect.

As a noun doubt is

uncertainty, disbelief.

As verbs the difference between doubt and criticise

is that doubt is to lack confidence in; to disbelieve, question, or suspect while criticise is to evaluate (something), and judge its merits and faults.

As a noun doubt

is uncertainty, disbelief.

As nouns the difference between doubt and reject

is that doubt is uncertainty, disbelief while reject is something that is rejected.

As verbs the difference between doubt and reject

is that doubt is to lack confidence in; to disbelieve, question, or suspect while reject is to refuse to accept.

As verbs the difference between assume and doubt

is that assume is while doubt is (ambitransitive) to lack confidence in; to disbelieve, question, or suspect.

As a noun doubt is

uncertainty, disbelief.

As a noun doubt

is uncertainty, disbelief.

As a verb doubt

is to lack confidence in; to disbelieve, question, or suspect.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between disillusionment and doubt

is that disillusionment is a feeling of disappointment, akin to depression, arising from the realization that something is not what it was expected or believed to be, possibly accompanied by philosophical angst from having one's beliefs challenged while doubt is uncertainty, disbelief.

As a verb doubt is

to lack confidence in; to disbelieve, question, or suspect.

As nouns the difference between septic and doubt

is that septic is a substance that causes sepsis or putrefaction while doubt is uncertainty, disbelief.

As an adjective septic

is of or pertaining to sepsis.

As a verb doubt is

to lack confidence in; to disbelieve, question, or suspect.

Bashfulness is a related term of doubt.

As nouns the difference between bashfulness and doubt

is that bashfulness is the quality or property of being bashful; shyness; reserve; timidity while doubt is uncertainty, disbelief.

As a verb doubt is

(ambitransitive) to lack confidence in; to disbelieve, question, or suspect.

In archaic terms the difference between jealousy and doubt

is that jealousy is a close concern for someone or something, solicitude, vigilance while doubt is to fear; to suspect.

As nouns the difference between jealousy and doubt

is that jealousy is a state of suspicious guarding towards a spouse, lover etc., from fears of infidelity while doubt is uncertainty, disbelief.

As a verb doubt is

to lack confidence in; to disbelieve, question, or suspect.