prevaricate

pre·var·i·cate  (pr-vr-kt)

intr.v. pre·var·i·cat·ed, pre·var·i·cat·ing, pre·var·i·cates

To stray from or evade the truth; equivocate.

Insouciant

in·sou·ci·ant  (n-ss-nt, s-syä)

adj.

Marked by blithe unconcern; nonchalant.

Trenchant

trench·ant  (trnchnt)

adj.

1. Forceful, effective, and vigorous: a trenchant argument. See Synonyms at incisive.

2. Caustic; cutting: trenchant criticism.

3. Distinct; clear-cut.

Solipsism

sol·ip·sism  (slp-szm, slp-)

n. Philosophy

1. The theory that the self is the only thing that can be known and verified.

2. The theory or view that the self is the only reality.

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[Latin slus, alone; see s(w)e- in Indo-European roots + Latin ipse, self + -ism.]

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solip·sist n.

solip·sistic adj.

Niggardly

nig·gard·ly  (ngrd-l)

adj.

1. Grudging and petty in giving or spending.

2. Meanly small; scanty or meager: left the waiter a niggardly tip.

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niggard·li·ness n.

niggard·ly adv.

Cloy

cloy  (kloi)

v. cloyed, cloy·ing, cloys

v.tr.

To cause distaste or disgust by supplying with too much of something originally pleasant, especially something rich or sweet; surfeit.

v.intr.

To be too filling, rich, or sweet.

Irascible

Adjective

Easily angered

His irascible demeanor declined with age.

http://www.thefreedictionary.com/irascible