Sentence examples for tricky to define from inspiring English sources

It's tricky to define cause and effect.

Music genres these days are tricky to define.

Bubblegum, like any pop subspecies, is tricky to define.

Video games are still very tricky to define.

The main focus of the speech was tricky to define.

Relative greatness can be tricky to define across tennis eras.

Substitution becomes trickier to define if we consider the case where t, the term being substituted for a variable in term t', may itself contain free variables.

I can't help noticing just how much all of the above are united by their 'northernness' (a tricky term to define, but one that is easy to sense) and how much sense of place features of their writing in a way that could not always be said about their southern contemporaries.

Activation, as noted above, is a tricky concept to define and measure since it involves the institutions responsible for delivering employment services, the payment of UI and related welfare benefits, the rules for monitoring and controlling the behaviour of benefit recipients as they search for work and how these rules are implemented in practice.

Overreach, however, is a tricky thing to define.

Near-death experiences (NDEs) are a notoriously tricky phenomenon to define in any rigorous clinical sense because of their subjective nature.