entomb Definition: (verb) Place in a grave or tomb. Synonyms: inhume, inter, lay to rest, bury Usage: He was entombed here in this crypt alongside his predecessors.
incertitude Definition: (noun) The state of being unsure of something. Synonyms: doubtfulness, dubiousness, uncertainty Usage: Here, too, he was disappointed; and then all was afloat, in the painful incertitude of doubt and conjecture.
irradiate Definition: (verb) Expose to radiation. Synonyms: ray Usage: The government regulators insist that we irradiate farm produce so as to destroy bacteria.