Clothes and looks

austere
(adj)
aw-STEER
Meaning

forbiddingly stern; lacking friendliness and cheerfulness

1st Sample Sentence

1. The professor seems very austere until you get to know him, and then you find that he's really a very warm and friendly soul.

2nd Meaning

2. severely simple and unornamented; very simple and unornamented

2nd Sample Sentence

2. Like many scholars, he kept his study in an austere condition, with only a table, a chair, and a bookcase.

Root

austeros (bitter, harsh, making the tongue dry) (Greek)

Synonyms

austere, staid

Antonyms

facetious, flippant

Mnemonics

AUS-australia TERE-tear (sorrow). Australians are good sportsman but they bring TEAR in eyes of opponents by their sledgings. Hence. they are AUS-TERE.