ちょっと一杯[chottoippai] let's have a quick drink
ばつ一[batsuichi] being once divorced
一向[hitaburu] nothing but
サラダ一皿[saradahitosara] plate of salad

安全第一[anzendaiichi] safety first
一か八か[ichikabachika] sink or swim
一っ走り[hitoppashiri] spin (as in 'take a car for a spin')
一つ一つ[hitotsuhitotsu] one-by-one

ポリシーに固執[porishiinikoshitsu] adherence to a policy
意固地[ikoji] obstinate
雨降って地固まる[amefuttejikatamaru] adversity strengthens the foundations
嘘で固める[usodekatameru] to fabricate a web of lies
押し固める[oshikatameru] to press together

確固[kakko] firm
乾固[kanko] drying and hardening
乾固まる[hikatamaru] to dry and harden
干し固める[hoshikatameru] to dry until stiff
簡明強固[kanmeikyouko] plain and sturdy

一徹[ittetsu] obstinate
一徹者[ittetsumono] stubborn person
貫徹[kantetsu] accomplishment
周知徹底[shuuchitettei] (something) known to all
初志貫徹[shoshikantetsu] carrying out one's original intention

徹す[toosu] to stick through
徹る[tooru] to go by
徹甲弾[tekkoudan] armor piercing ammunition
徹宵[tesshou] all night
徹底[tettei] thoroughness

頑強[gankyou] dogged
頑健[ganken] robust health
頑固[ganko] stubbornness
頑丈[ganjou] solid
頑張る[ganbaru] to persevere

頑迷[ganmei] bigotry
頑張り[ganbari] tenacity
頑癬[tamushi] ringworm (of the body)
頑として[gantoshite] firmly, stubbornly