Angularity and Acrid

noun

• A shape having one or more sharp angles.
  • synonyms: angular shape
• The property possessed by a shape that has angles. .

adjective

• (adj.) ()
  • synonyms: pungent
• Harsh or corrosive in tone.
  • usage: "an acerbic tone piercing otherwise flowery prose"; "a barrage of acid comments"; "her acrid remarks make her many enemies"; "bitter words"; "blistering criticism"; "caustic jokes about political assassination, talk-show hosts and medical ethics"; "a sulfurous denunciation"; "a vitriolic critique"
  • synonyms: acerb, acerbic, acid, bitter, blistering, caustic, sulfurous, sulphurous, virulent, vitriolic

• (a.) Sharp and harsh or bitter and not, to the taste; pungent; as, acrid salts.
• (a.) Causing heat and irritation; corrosive; as, acrid secretions.
• (a.) Caustic; bitter; bitterly irritating; as, acrid temper, mind, writing.