Word for tomorrow:Irony

When I said I wanted to be a mathematician they said ,You must be joking.Was that irony?
irony1
ˈʌɪrəni/
noun
noun: irony
  1. the expression of one’s meaning by using language that normally signifies the opposite, typically for humorous or emphatic effect.
    “‘Don’t go overboard with the gratitude,’ he rejoined with heavy irony”
    synonyms: sarcasm, sardonicism, dryness, causticity,sharpness, acerbity, acid, bitterness, trenchancy,mordancy, cynicism; More
    antonyms: sincerity
    • a state of affairs or an event that seems deliberately contrary to what one expects and is often wryly amusing as a result.
      plural noun: ironies
      “the irony is that I thought he could help me”
      synonyms: paradox, paradoxical nature, incongruity,incongruousness, peculiarity

      “the irony of the situation hit her”
      antonyms: logic
    • a literary technique, originally used in Greek tragedy, by which the full significance of a character’s words or actions is clear to the audience or reader although unknown to the character.
      noun: dramatic irony; plural noun: tragic irony
Origin
early 16th century (also denoting Socratic irony): via Latin from Greek eirōneia ‘simulated ignorance’, from eirōn ‘dissembler’.

Allowed to play

My mother’s voice showed acidity

As she told me off for my libidity

But it came naturally

From nature to me.

Did she wish me to show men frigidity?

 

The whole human world would die straight away

If the boys and the girls weren’t allowed to play

We took tar from ‘tween cobbles

And blew  rainbow soap bubbles

But now I’m so past it, alackaday.

Dichotomy [ from online dictionary]

dichotomy
dʌɪˈkɒtəmi,dɪ-/
noun
noun: dichotomy; plural noun: dichotomies
  1. 1.
    a division or contrast between two things that are or are represented as being opposed or entirely different.
    “a rigid dichotomy between science and mysticism”
    synonyms: division, separation, divorce, split, gulf, chasm;

    “there is a great dichotomy between social theory and practice”
  2. 2.
    BOTANY
    repeated branching into two equal parts.
Origin
late 16th century: via modern Latin from Greek dikhotomia, fromdikho- ‘in two, apart’ + -tomia (see -tomy).