All formal antonyms

adj formal

• ambiguous — If you describe something as ambiguous, you mean that it is unclear or confusing because it can be understood in more than one way.
• inaccurate — not accurate; incorrect or untrue.
• indefinite — not definite; without fixed or specified limit; unlimited: an indefinite number.
• informal — without formality or ceremony; casual: an informal visit.
• customary — Customary is used to describe things that people usually do in a particular society or in particular circumstances.
• ordinary — of no special quality or interest; commonplace; unexceptional: One novel is brilliant, the other is decidedly ordinary; an ordinary person.
• disorderly — characterized by disorder; irregular; untidy; confused: a disorderly desk.
• relaxed — being free of or relieved from tension or anxiety: in a relaxed mood.
• normal — conforming to the standard or the common type; usual; not abnormal; regular; natural.
• unaffected — not affected, acted upon, or influenced; unchanged; unaltered: The laboratory clock remained accurate, unaffected by the explosion.