Adjective

(en-adj)

Sharp and harsh, or bitter and not to the taste; pungent.

* {{quote-magazine, date=2013-06-29, volume=407, issue=8842, page=29, magazine=(The Economist)

, title= Unspontaneous combustion , passage=Since the mid-1980s, when Indonesia first began to clear its bountiful forests on an industrial scale in favour of lucrative palm-oil plantations, “haze” has become an almost annual occurrence in South-East Asia. The cheapest way to clear logged woodland is to burn it, producing an acrid cloud of foul white smoke that, carried by the wind, can cover hundreds, or even thousands, of square miles.}}

Causing heat and irritation; corrosive.

Caustic; bitter; bitterly irritating.

Adjective

(en adjective)

Arousing or meriting strong dislike, aversion, or intense displeasure.

Scrubbing the toilet is an odious task.

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* {{quote-book

, year=1818 , author=Mary Shelley , title=Frankenstein , chapter=6 citation , passage=He looks upon study as an odious fetter; his time is spent in the open air, climbing the hills or rowing on the lake.}}