tick·lish / ˈtik(ə)lish/ • adj. 1. sensitive to being tickled: Lhasa apsos are ticklish on their feet. ∎ (of a cough) characterized by persistent irritation in the throat.2. (of a situation or problem) difficult to deal with; requiring careful handling: her skill in evading ticklish questions. ∎ (of a person) easily upset.DERIVATIVES: tick·lish·ly adv.tick·lish·ness n.