Given to quirks or idiosyncrasies; strange in a somewhat silly, awkward manner, potentially cute.

(uncountable) The state of being quirky / (countable) A specific quirky aspect of a person or thing

plural of quirkiness

(grammar) A subject in a grammatical case other than the nominative (used with certain verbs in some languages, e.g. Icelandic).

plural of quirky subject

Someone who enjoys being single (but is not opposed to being in a relationship) and generally prefers to be alone rather than dating for the sake of being in a couple.

plural of quirkyalone