optional
(adj.) left to one's own choice; not required
outright
(adj.) complete; instantaneous; without reservation, thoroughgoing; (adv.) completely, instantaneously
rendezvous
(v.) to meet in accordance with a plan; (n.) a meeting by agreement; a meeting place
rotund
(adj.) rounded and plump; full or rich in sound
saunter
(v.) to stroll; walk in an easy, leisurely way; (n.) a stroll
sluggish
(adj.) lazy; slow-moving; not active, dull
subordinate
(adj.) lower in rank or position, secondary; (n.) one who is in a lower position or under the orders of someone else; (v.) to put in a lower or secondary position
tint
(n.) a delicate color or hue; a slight trace of something; (v.) to give color to something; to dye
variable
A symbol used to represent a quantity that can change
verge
(n.) the point at which something begins or happens; a border; (v.) to incline, tend toward, approach; to be in the process of becoming something else