Sarcastically

sar·cas·tic  (sär-kstk)

adj.

1. Expressing or marked by sarcasm.

2. Given to using sarcasm.

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[sarc(asm) + -astic, as in enthusiastic.]

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sar·casti·cal·ly adv.

Synonyms: sarcastic, ironic, caustic, satirical, sardonic
These adjectives mean having or marked by a feeling of bitterness and a biting or cutting quality. Sarcastic suggests sharp taunting and ridicule that wounds: "a deserved reputation for sarcastic, acerbic and uninhibited polemics" Burke Marshall.
Ironic implies a subtler form of mockery in which an intended meaning is conveyed obliquely: "a man of eccentric charm, ironic humor, andabove allprofound literary genius" Jonathan Kirsch.
Caustic means corrosive and bitingly trenchant: "The caustic jokes ... deal with such diverse matters as political assassination, talk-show hosts, medical ethics" Frank Rich.
Satirical implies exposure, especially of vice or folly, to ridicule: "on the surface a satirical look at commercial radio, but also a study of the misuse of telecommunications" Richard Harrington.
Sardonic is associated with scorn, derision, mockery, and often cynicism: "He was proud, sardonic, harsh to inferiority of every description" Charlotte Brontë.

Thesaurus

Adv.

1.

sarcastically - in a sarcastic manner; "`Ah, now we're getting at the truth,' he interposed sarcastically" sardonically