reticent

As an adjective reticent

is reluctant; reticent.

As adjectives the difference between reticent and incommunicable

is that reticent is reluctant; reticent while incommunicable is (of a disease etc) that cannot be communicated or transmitted.

As adjectives the difference between reticent and untalkative

is that reticent is reluctant; reticent while untalkative is unwilling to talk; taciturn; refusing to speak.

As adjectives the difference between reticent and diffident

is that reticent is keeping one's thoughts and opinions to oneself; reserved or restrained while diffident is : Lacking confidence in others; distrustful.

As adjectives the difference between reticent and coy

is that reticent is keeping one's thoughts and opinions to oneself; reserved or restrained while coy is bashful, shy, retiring.

As a verb coy is

to caress, pet; to coax, entice.

As a noun coy is

a trap from which waterfowl may be hunted.

As adjectives the difference between reticent and forward

is that reticent is reluctant; reticent while forward is toward the front or at the front.

As a noun forward is

(dialectal|or|obsolete) agreement; covenant or forward can be (rugby) one of the eight players (comprising two props, one hooker, two locks, two flankers and one number eight, collectively known as the pack) whose primary task is to gain and maintain possession of the ball (compare back).

As an adverb forward is

towards the front or from the front.

As a verb forward is

to advance, promote.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective reticent is

reluctant; reticent.

As adjectives the difference between reticent and retiring

is that reticent is reluctant; reticent while retiring is shy, introverted, liking privacy.

As a verb retiring is

.

As a noun retiring is

retirement.

As adjectives the difference between reticent and reserve

is that reticent is reluctant; reticent while reserve is reserved.