UNHATTED

Etymology

Adjective

unhatted (not comparable)

Not wearing a hat; hatless.

(typography) Written without a circumflex ('^').

Usage notes

The use of unhatted to refer to a character that lacks a circumflex is most commonly used in mathematical texts that have related variables with and without the circumflex. Thus, given the variables a and â, these would be referred to as unhatted and hatted instances of the variable a.

Source: Wiktionary

UNHAT

Un*hat", v. t. & i. Etym: [1 st pref. un- + hat.]

Definition: To take off the hat of; to remove one's hat, especially as a mark of respect. H. Spenser.

Source: Webster’s Unabridged Dictionary 1913 Edition