Wonderful World of Lexiconology

5. Meticulist

Meticulist ( Me-tic-u-list)-

One who is extremely careful in his/her use of language, diction; a precise measurer.

Synonyms: Accurate, cautious, Fastidious, Fussy, Scrupulous

Antonyms: Careless, Sloppy

4. Atenuate: ( at·ten·u·ate)- Verb

To stretch out; prolong. To weaken or reduce in force, intensify, effect, quantity, or value.


Synonyms: Abate, constrict, contract, cripple, debilitate, deflate, disable, extenuate, lessen.

Antonyms: Expand, fortify, increase, intensify, strengthen

Desultorily: (des·ul·to·ry)- Adverb
(Lexicon says Adverb, Dictionary.com says Adjective) ?

Lacking steadiness, fixity, regularity, or continuity. Lacking in consistency, or visible order, disconnected; fitful. Digressing from or disconnecting from the main subject; random.

Synonyms: None found
Antynonyms: None found

Sentence- "However desultory, his father always kept in touch with him, and the more easily his son grew older, and the two, although apart, did not grow apart" (From Lexicon)

Engender: (en·gen·der)- Verb

To Bring into existence; give rise to. To produce, cause. To beget; procreate.

Synonyms:

arouse, beget, breed, bring about, bring forth, cause, create, develop, excite, father, foment, generate, hatch, incite, induce, instigate, lead to, make, muster, occasion, precipitate, procreate, produce, propagate, provoke, quicken, rouse, sire, spawn, stimulate,

Antonyms: destroy, finish, halt, stop

Reference:
'The Lexicon'- By William F. Buckley Jr.
Dictionary.com
Thesaurus.com

Asseveration: (as·sev·er·a·tion)- Noun

Declaration. An assertion made in very positive form; a solemn assertion. A declaration that is made emphatically (as if no supporting evidence were necessary). To declare seriously or positively; afffirm.

Synonyms: OK, affidavit, assertion, asseveration, attestation, averment, avouchment, avowal, certification, confirmation, declaration, green light, oath, pronouncement, ratification, statement, sworn statement, testimony

Antonyms: denial, refutation


Reference:
The Lexicon' - By William F. Buckley Jr.
Dictionary.com.
Thesaurus.com