plain

How to sign: express complaints, discontent, displeasure, or unhappiness
"My mother complains all day"; "She has a lot to kick about";

Similiar / Same: complain, quetch, kvetch, sound off, kick

Within this category: backbite, bleat, deplore, gripe, grouch, murmur, nag, protest, rail, repine, report, whine

plain

How to sign: clearly apparent or obvious to the mind or senses
"the effects of the drought are apparent to anyone who sees the parched fields"; "evident hostility"; "manifest disapproval"; "patent advantages"; "made his meaning plain"; "it is plain that he is no reac;

Similiar / Same: apparent, evident, manifest, patent

plain

How to sign: lacking embellishment or ornamentation
"a plain hair style"; "unembellished white walls"; "functional architecture featuring stark unornamented concrete";

Similiar / Same: unornamented, unembellished